Fits select 2020-2025 Chevrolet Silverado & GMC Sierra 2500 HD and 3500 HD models (High Country, LT, LTZ, WT, Denali, SLE, and SLT).

Level your heavy-duty GM truck without sacrificing ride quality. The Cognito 110-P1351 Performance Leveling Kit provides up to 3 inches of front lift while optimizing suspension geometry for superior on-road comfort and off-road control. This system utilizes Cognito 2.0 IFP (Internal Floating Piston) aluminum shocks, which are specifically tuned to offer 35% more front wheel droop travel than the factory setup. By providing the correct shock length, this kit ensures your suspension reaches full extension without binding the tie rods, lower ball joints, or CV axles.

The included SM Series Upper Control Arms correct ball joint angles and add necessary caster for improved stability. These arms feature the high-angle patented Cognito Alpha Ball Joint for maximum durability. For corrosion resistance, the shocks feature hard-anodized bodies and end caps, while the gas-charged IFP design prevents oil aeration during heavy use.

• Up to 3 inches of front lift height
• 35% more front droop travel compared to stock
• Cognito 2.0 IFP gas-charged aluminum shocks (front and rear)
• SM Series Upper Control Arms with patented Alpha Ball Joints
• Forged torsion bar keys for precise ride height adjustment
• Hard-anodized shock bodies and seal heads for corrosion resistance
• Rebuildable shock design with vulcanized upper bar pin bushings
• Estimated installation time: 4-6 hours
• Manufacturer Part Number: 110-P1351

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500/3500 HD.

The Cognito 110-P1326 3-inch Performance Leveling Kit is a comprehensive suspension upgrade designed to improve the stance, ride quality, and off-road capability of your heavy-duty GM truck. Unlike basic spacer kits, this system includes SM Series Upper Control Arms (UCAs) featuring Cognito’s patented high-angle Alpha Ball Joints, which correct ball joint angles and add necessary caster for better tracking and alignment stability at the increased ride height.

Damping is handled by Cognito 2.0 IFP (Internal Floating Piston) aluminum shocks, which are specifically tuned for the HD chassis. These shocks use a gas-charged design to prevent oil aeration and are sized to provide 35% more front wheel droop travel than stock. The kit also includes heavy-duty torsion bar keys to achieve the desired front ride height without compromising suspension performance.

• Yields up to 3 inches of front lift for larger tire clearance
• Cognito SM Series Upper Control Arms with Alpha Ball Joints
• 2.0 IFP aluminum shocks with hard anodized bodies for corrosion resistance
• Includes specialized torsion bar keys for precise height adjustment
• 35% increase in front suspension droop travel
• Vulcanized upper bar pin and bushings for OE-level mounting quality
• Fully rebuildable shock design for long-term serviceability
• Estimated installation time: 4-6 hours

Fits 2024-2025 Chevrolet Silverado 2500 HD ZR2 and GMC Sierra 2500 HD AT4X.

The ZR2 and AT4X models come from the factory with a specialized ride height achieved via torsion bar clocking. While these models sit higher than standard trims, the increased height results in tie rod angles that are no longer flat with the centerlink. This geometry creates excessive stress on the steering system, leading to premature wear of the pitman and idler arms. The Cognito Super Stock Kit addresses these geometry flaws while maintaining the performance of the factory DSSV shocks.

This kit includes Cognito SM Series Upper Control Arms, which feature modified ball joint angles and increased caster to optimize alignment and handling at the taller ride height. To protect the steering system, the package includes the patented Cognito Pitman and Idler Arm Support Kit, which stabilizes the centerlink to prevent component failure and uneven tire wear. Front shock extenders are also provided to ensure full travel for the factory DSSV dampers.

• Cognito SM Series Upper Control Arm Kit
• Cognito Pitman and Idler Arm Support Kit
• Cognito Front DSSV Shock Extenders
• Maintenance-free pivot bushings and ball joints
• Semi-gloss black powder coat finish
• Estimated 3-hour DIY installation time
• Manufacturer Part Number: 110-P1268

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD (2WD/4WD) models. This kit provides a level stance by lifting the front of the vehicle 3 inches, eliminating the factory nose-down rake while maintaining proper suspension geometry.

This Cognito 110-P1236 kit features SM Series Upper Control Arms constructed from boxed sheet metal with a durable semi-gloss black powder coat finish. The design improves ball joint angles and increases allowable droop travel, which is critical for maintaining ride quality and preventing component wear on lifted HD trucks. The included torsion bar adjuster keys are forged for maximum strength and allow for precise height adjustment. The kit is completed with front shock spacers to ensure the factory shocks remain within their effective operating range.

• Yields 3 inches of front lift for a level profile
• Cognito SM Series Upper Control Arm Kit with heavy-duty ball joints
• Forged torsion bar adjuster keys for superior durability
• Maintenance-free pivot bushings
• Maintains adequate droop travel to retain OE ride quality
• Accommodates up to 35x12.5-inch tires on 9-inch wide wheels (5-inch backspacing)
• Estimated 3-hour DIY installation time
• Includes front shock spacers and all necessary hardware
• Manufacturer Part Number: 110-P1236
• Proudly Made in the USA

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD 2WD/4WD models.

The Cognito 7-Inch Performance Lift Kit is a comprehensive suspension solution engineered to provide superior ride quality and corrected geometry for heavy-duty GM trucks. This system utilizes a Non-Torsion Bar Drop design to maintain ground clearance and optimize CV joint angles. The included SM Series Ball Joint Upper Control Arms are constructed from boxed sheet metal with a semi-gloss black powder coat, specifically designed to correct ball joint angles and increase allowable droop travel in lifted applications.

To solve inherent steering slop in the GM platform, this kit includes the patented Cognito Pitman and Idler Arm Support Kit (PISK), which eliminates center-link movement by providing additional bracing to the steering components. Performance is further enhanced by Fox 2.0 Performance Series Remote Reservoir shocks, which provide consistent dampening through improved heat dissipation. This kit is a complete bolt-on system manufactured in the USA.

• Manufacturer Part Number: 110-P1033
• Front Lift Height: 7 Inches
• Rear Lift Height: 5 Inches via Block and U-Bolt Kit
• Shocks: Fox 2.0 Performance Series Remote Reservoir (PSRR)
• Upper Control Arms: SM Series Ball Joint (Boxed Steel)
• Steering Support: Cognito PISK (Pitman and Idler Arm Support Kit) included
• Compression Struts: SM Series included
• Brake Lines: Extended Stainless Steel included
• Installation: Approximately 16-hour DIY install time
• Country of Origin: Made in the USA

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD 2WD and 4WD models.

Achieve a balanced 7-inch front lift and 5-inch rear lift on your GM Heavy Duty truck with this precision-engineered Cognito lift package. Built around Cognito’s performance-proven front suspension system, this kit utilizes an integrated skid plate to tie the front and rear crossmembers together, significantly increasing front-end rigidity and chassis strength. The package includes custom-fabricated spindles and SM Series compression struts for a high-strength foundation that maintains proper suspension geometry.

This kit features Fox 2.0 Performance Series Monotube (PSMT) shocks, valved specifically to manage the unsprung weight of larger wheel and tire combinations while maintaining a controlled, comfortable on-road ride. Components are hand-built in the USA and finished in a durable semi-gloss black powder coating for long-term corrosion resistance. Note: For 4WD models, a CV driveline is required if operating in 4WD at speeds above 20 mph.

• Manufacturer Part Number: 110-P1032
• Front Lift Height: 7 Inches
• Rear Lift Height: 5 Inches (Fabricated blocks and heavy-duty U-bolts)
• Shocks: Fox 2.0 Performance Series Monotube Shocks
• Hardware: Stainless steel extended brake lines and SM Series compression struts
• Construction: Custom-fabricated spindles and integrated skid plate
• Finish: Durable semi-gloss black powder coat
• Installation: 13-hour estimated DIY time
• Origin: Made in the USA

Fits 2019-2025 GMC Sierra 1500 Denali and 2022-2025 GMC Sierra 1500 Denali Ultimate (2WD/4WD). This Cognito Standard Lift Kit is a complete, bundled suspension solution engineered to provide 4 inches of front lift and 2.5 inches of rear lift while maintaining factory ride quality. Designed and manufactured in the USA, this kit eliminates guesswork by including all necessary components for a leveled stance and corrected suspension geometry.

The system focuses on technical precision, correcting CV joint angles and steering geometry to prevent premature wear. It features front strut spacers and Cognito standard white body rear shocks for cost-effective performance. The rear is supported by 2.5-inch semi-gloss black powder-coated cast steel blocks and heavy-duty zinc-plated U-bolts. Please note that a CV driveline is required for vehicles operating in 4WD.

• Manufacturer Part Number: 110-P1020
• Lift Height: 4-inch Front, 2.5-inch Rear
• Maintains adequate droop travel for superior ride quality
• Includes 2.5-inch powder-coated cast steel blocks and zinc-plated U-bolts
• Includes standard white body rear shocks
• Estimated DIY install time: 10.5 hours
• Engineered, manufactured, and assembled in the USA

Fits select 2011-2019 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD (2WD/4WD) models. This comprehensive package (MPN 110-P0967) eliminates the guesswork by bundling Cognito's precision-engineered components for a corrected suspension geometry and superior ride quality.

The core of this system is the Cognito Non-Torsion Bar Drop Front Lift kit, which provides a 4-inch front lift while maintaining proper CV joint angles. To address common steering weaknesses, the kit includes the patented Pitman and Idler Arm Support Kit (PISK). This system provides additional support to the steering components, eliminating the forward and rearward movement of the center-link that often plagues GM heavy-duty trucks. For the rear, a block and U-bolt kit provides a 1-inch lift to level the vehicle's stance.

Control and damping are handled by Fox 2.0 Performance Series Remote Reservoir shocks, paired with Cognito SM Series Ball Joint Upper Control Arms. These boxed sheet metal arms feature a semi-gloss black powder coat and are designed to correct ball joint angles and improve allowable droop travel for better performance on and off-road.

• Front Lift: 4 inches
• Rear Lift: 1 inch
• Shocks: Fox 2.0 Performance Series Remote Reservoir (PSRR)
• Upper Control Arms: Boxed sheet metal SM Series with polyurethane bushings and crush sleeves
• Steering: Includes Cognito Pitman and Idler Arm Support Kit (PISK)
• Installation: Estimated 13-hour DIY install time
• Origin: Made in the USA
• Manufacturer Part Number: 110-P0967

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD (2WD/4WD) models. This comprehensive package levels the stance of your heavy-duty truck while correcting suspension geometry and steering vulnerabilities common on the GM HD platform.

The Cognito Premier Leveling Kit is engineered to provide 3 inches of front lift without sacrificing ride quality. It features SM Series Upper Control Arms constructed from boxed sheet metal for superior strength. These arms corrected ball joint angles and increased droop travel, while the included Pitman and Idler Arm Support Kit (PISK) eliminates the center-link wobble that plagues factory steering systems. Damping is handled by Fox 2.0 Performance Series Remote Reservoir shocks, which provide increased oil capacity and fade-free performance for both highway driving and demanding off-road use.

• Yields 3 inches of front lift for a level stance
• Cognito SM Series Ball Joint Upper Control Arms with semi-gloss black powder coat
• Fox 2.0 Performance Series Remote Reservoir shocks (front and rear)
• Patented Pitman and Idler Arm Support Kit (PISK) to improve steering response and tire wear
• Forged Torsion Bar Adjuster Keys and 0.5-inch front shock spacers included
• Maintains critical droop travel for optimal ride quality
• Accommodates up to 35x12.5-inch tires on 9-inch wide wheels (5-inch backspacing)
• Bolt-on installation; approximately 5-hour DIY install time
• Manufactured and assembled in the USA
• Manufacturer Part Number: 110-P0929

Fits select 2011-2019 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD (2WD/4WD) models.

The Cognito 110-P0928 3-inch Performance Leveling Kit is a precision-engineered suspension system designed to level your heavy-duty truck's stance while significantly improving ride quality and durability. This kit addresses the common geometry issues associated with leveling by including Cognito Ball Joint SM Series Upper Control Arms. These boxed sheet metal arms increase allowable droop travel and correct ball joint angles, preventing the harsh ride and premature wear typical of torsion key-only lifts.

Damping is handled by a full set of Fox 2.0 Performance Series Monotube IFP shocks, which utilize race-proven internal floating piston technology to provide predictable handling on-road and off. The kit also features forged torsion bar adjuster keys for reliable front-end height adjustment and includes 0.5-inch front shock extenders to ensure the shocks operate within their optimal travel range.

• Yields 3 inches of front lift for a level stance
• Cognito Ball Joint SM Series Upper Control Arm Kit corrects geometry and improves droop travel
• Fox 2.0 Performance Series Monotube IFP front and rear shocks
• Forged Torsion Bar Adjuster Key Kit for maximum strength
• 0.5-inch front shock extender kit included
• Boxed sheet metal control arms with semi-gloss black powder coat finish
• Estimated 3.5-hour bolt-on installation
• Made in the USA
• Manufacturer Part Number: 110-P0928

Fits 2011-2019 Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD 2WD/4WD models.

Upgrade your heavy-duty GM truck’s stance and suspension performance with the Cognito Premier Leveling Kit. This system is engineered to provide 3 inches of front lift while solving the common geometry issues associated with torsion bar adjustments. By utilizing Cognito SM Series Upper Control Arms, this kit corrects the ball joint angle and increases allowable droop travel, ensuring a superior ride quality compared to basic key-only lifts.

Steering stability is addressed via the included Pitman and Idler Arm Support Kit (PISK). This patented design reinforces the factory steering components, eliminating the forward and rearward center-link movement that often leads to premature tire wear and poor handling. For dampening, this kit features Fox 2.0 Performance Series Remote Reservoir shocks. These shocks offer increased oil and nitrogen capacity for better heat dissipation and consistent performance across rough terrain.

• Cognito SM Series Ball Joint Upper Control Arms (Boxed Sheet Metal)
• Fox 2.0 Performance Series Remote Reservoir Shocks (Front & Rear)
• Cognito Pitman and Idler Arm Support Kit (PISK)
• Forged Torsion Bar Adjuster Keys
• 0.5-Inch Front Shock Extender Kit to maximize travel
• Semi-gloss black powder coat finish
• Approximate 5-hour installation time
• Made in the USA
• Manufacturer Part Number: 110-P0926

Fits select 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD (2WD/4WD) models. This comprehensive Cognito suspension system is engineered to provide a 4-inch front lift while correcting critical suspension geometry for superior ride quality and durability.

The centerpiece of this kit is the Cognito Non-Torsion Bar Drop Front Lift, which maintains ground clearance and corrects CV joint angles to prevent premature wear. To further improve suspension cycling, the SM Series Ball Joint Upper Control Arms provide increased droop travel and corrected ball joint angles. These arms feature a robust boxed sheet metal design, CNC-welded and finished in a semi-gloss black powder coat with maintenance-free ball joints and pivot bushings. For steering stability, the included Pitman and Idler Arm Support Kit (PISK) reinforces the center-link to eliminate the front-to-rear movement common in GM HD steering systems.

• Manufacturer Part Number: 110-P0896
• Front Lift: 4 Inches
• Rear Lift: 2 Inches (includes block and U-bolt kit)
• Shocks: Fox 2.0 Performance Series Remote Reservoir (PSRR)
• Upper Control Arms: Boxed SM Series with heavy-duty ball joints
• Steering: Patented Pitman and Idler Arm Support Kit (PISK)
• Construction: Boxed sheet metal arms, semi-gloss black finish
• Installation: Approximately 13-hour DIY install time
• Origin: Made in the USA

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD 2WD/4WD trucks. This Cognito 110-P0890 4-Inch Standard Lift Kit is a comprehensive suspension solution engineered to provide a leveled stance and increased ground clearance while maintaining superior ride quality. The kit features Cognito's Non-Torsion Bar Drop design, which keeps the torsion bars in the factory location for a clean profile and improved clearance while ensuring corrected CV joint angles.

Damping is handled by Fox 2.0 Performance Series IFP monotube shocks. These shocks utilize an impact-extruded aluminum body for increased cooling capacity and rust resistance. The Internal Floating Piston (IFP) design separates the shock oil from the high-pressure, nitrogen-charged gas chamber, eliminating oil aeration and ensuring predictable handling on-road and off. The rear lift is achieved via 2-inch tall semi-gloss black powder-coated cast steel blocks and heavy-duty zinc-plated U-bolts.

• Front Lift: 4 Inches
• Rear Lift: 2 Inches
• Shock Type: Fox 2.0 Performance Series IFP Monotube
• Tire Clearance: Up to 37x12.5 on a 9-inch wide wheel (5.5-inch backspacing)
• Design: Non-Torsion Bar Drop with corrected CV angles
• Construction: Powder-coated cast steel blocks and zinc-plated U-bolts
• Installation: Approximately 10-hour DIY install time
• Origin: Made in the USA
• Manufacturer Part Number: 110-P0890

Fits select 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD 2WD/4WD models. This comprehensive Cognito Performance Leveling Kit is engineered to eliminate the factory nose-down rake while significantly improving suspension geometry and ride quality.

At the core of this kit are the Cognito SM Series Upper Control Arms. These boxed sheet metal arms are CAD-designed to correct ball joint angles and provide additional droop travel, which is essential for maintaining a smooth ride on leveled trucks. The arms come equipped with pre-installed maintenance-free ball joints and polyurethane bushings for a quiet, durable service life. To achieve the 3-inch front lift, the kit utilizes forged torsion bar adjuster keys that offer increased height without compromising strength. The rear is supported by a 1-inch cast steel block and heavy-duty U-bolt kit to level the stance while keeping your towing capabilities intact.

Damping is handled by Fox 2.0 Performance Series IFP shocks. The Internal Floating Piston (IFP) design prevents oil aeration, ensuring consistent, fade-free performance whether you are on the highway or navigating rough job sites. This kit allows for up to 35x12.5-inch tires on 9-inch wide wheels with 5-inch backspacing.

• Cognito Part Number: 110-P0883
• Front Lift: 3 Inches; Rear Lift: 1 Inch
• SM Series Upper Control Arms with semi-gloss black powder coat
• Heavy-duty forged torsion bar adjuster keys
• Fox 2.0 Performance Series IFP front and rear monotube shocks
• Includes 1-inch rear lift blocks and zinc-plated U-bolts
• Maintenance-free ball joints and polyurethane bushings
• Approximate 4.5-hour DIY installation time
• Made in the USA

Fits select 2001-2013 Chevrolet Silverado 2500 HD/3500 HD and Suburban 2500, and GMC Sierra 2500 HD/3500 HD and Yukon XL 2500 (2WD/4WD).

The Cognito Non-Torsion Bar Drop Front Lift Kit is a comprehensive suspension solution engineered to provide a 4-inch front lift while maintaining factory-style ride quality. By utilizing a non-torsion bar drop design, this kit keeps the torsion bars in their original location for better ground clearance and corrected CV joint angles, ensuring long-term drivetrain reliability. To level the stance, the kit includes 2-inch rear lift blocks constructed from powder-coated semi-gloss black cast steel and heavy-duty zinc-plated U-bolts.

This system is paired with Fox 2.0 Performance Series IFP Monotube shocks. These shocks feature a metal-impact extruded aluminum body for superior cooling and rust resistance. The internal floating piston (IFP) design separates shock oil from the high-pressure nitrogen gas, eliminating oil aeration to provide consistent, fade-free performance during both on-road commuting and demanding off-road use.

• Manufacturer Part Number: 110-P0785
• Front Lift: 4 Inches
• Rear Lift: 2 Inches
• Shock Type: Fox 2.0 Performance Series IFP Monotube (Front and Rear)
• Corrects CV joint angles and maintains adequate droop travel
• Rear Block Construction: Semi-gloss black powder-coated cast steel
• Estimated Install Time: 10 Hours
• Country of Origin: USA

Fits 2011-2019 Chevrolet Silverado and GMC Sierra 2500/3500 HD (2WD/4WD).

The Cognito 110-P0778 Standard Lift Kit provides 4 inches of front lift while maintaining chassis integrity through a performance-proven design. At the center of the system is a front suspension lift kit featuring an integrated skid plate that bridges the front and rear crossmembers, significantly increasing front-end rigidity. The kit is engineered for daily drivability and trail reliability, utilizing custom-fabricated spindles and heavy-duty bracketry finished in a durable semi-gloss black powder coating.

To level the stance, Cognito includes 1-inch fabricated rear blocks with replacement U-bolts. Dampening is handled by Fox 2.0 Performance Series Monotube (PSMT) shocks, specifically valved to provide a controlled on-road ride and predictable handling in off-road environments. This system allows for larger tire fitment without sacrificing the heavy-duty capabilities of your truck.

• Front Lift Height: 4 Inches
• Rear Lift Height: 1 Inch (via fabricated blocks and U-bolts)
• Shocks: Fox 2.0 Performance Series Monotube Front & Rear
• Tire Clearance: Up to 35x12.5 tire on 9-inch wide wheel with 5.75-inch backspacing
• Construction: Hand-built in the USA
• Finish: Semi-gloss black powder coat
• Manufacturer Part Number: 110-P0778
• Includes: Custom spindles, skid plate, bracketry, rear blocks, U-bolts, and decal pack

Fits select 2001-2013 Chevrolet Silverado/Suburban 2500/3500 HD and GMC Sierra/Yukon XL 2500/3500 HD 2WD/4WD.

Correct your truck’s stance while enhancing off-road control with the Cognito 3-Inch Performance Leveling Kit. Designed to eliminate the factory nose-down rake, this system provides 3 inches of front lift without compromising suspension geometry. At the core of the kit are the Cognito Ball Joint SM Series Upper Control Arms, which feature boxed sheet metal construction, CNC robot-welded joints, and a durable semi-gloss black powder coat. These arms are specifically engineered to correct ball joint angles for lifted applications and increase caster for improved highway stability.

This performance package includes nitrogen-charged Fox 2.0 Performance Series IFP monotube shocks. These shocks utilize race-proven damping technology to deliver a comfortable on-road ride and predictable handling in rough terrain. The included forged torsion bar adjuster keys and front shock spacers ensure you maintain adequate droop travel, preserving ride quality even at the increased ride height.

• Manufacturer Part Number: 110-P0753
• Yields 3 inches of front lift
• Cognito Ball Joint SM Series Upper Control Arm Kit
• Fox 2.0 Performance Series IFP front and rear monotube shocks
• Boxed sheet metal UCA construction with semi-gloss black powder coat
• Heavy-duty alloy series ball joints and polyurethane bushings included
• Forged torsion bar adjuster keys for precise height adjustment
• Improves ball joint angles and increases caster for better drivability
• Approximate 3.5-hour DIY installation time
• Engineered, manufactured, and assembled in the USA

Fits 2019-2025 Chevrolet Silverado 1500 and GMC Sierra 1500 models.

The Cognito SM-Series 3-Inch Standard Leveling Kit provides a comprehensive solution for leveling your truck without compromising suspension geometry. This kit includes Cognito Standard SM-Series Upper Control Arms, specifically engineered with a modified ball joint angle to eliminate travel limitations common in lifted applications. By maximizing the operating angle of the high-angle ball joints, Cognito ensures your truck maintains adequate droop travel to preserve factory ride quality.

This system is fully compatible with models equipped with Adaptive Ride Control, including Denali and Trail Boss trims. The combination of specific-height strut spacers and preload spacers is designed to work seamlessly with the factory front shocks to achieve a level stance while reducing the factory front rake.

• Front Lift Height: 3 Inches
• Includes Cognito SM-Series Standard Upper Control Arm Kit
• High-angle ball joints maximize operating angles for leveled suspension
• Strut spacers and preload spacers compatible with OEM front shocks
• Maintains factory droop travel for superior ride quality
• Compatible with Adaptive Ride Control (ARC)
• Approximate Installation Time: 4 Hours
• Manufacturer Part Number: 110-91288

Fits 2024-2025 Chevrolet Silverado 2500 HD ZR2 and GMC Sierra 2500 HD AT4X models.

Stock HD trucks equipped with Multimatic DSSV shocks often suffer from limited suspension movement, offering only 2 inches of droop travel. This restrictive range can lead to a harsh ride and frequent topping out when navigating bumps or dips. The Cognito Front Shock Extender (MPN 110-91256) is engineered to maximize the factory suspension's potential by adding a precisely calculated spacer to the front shock assembly.

This modification increases droop travel to just over 3 inches—a 50% improvement over stock. The result is significantly better compliance and a smoother ride through rough terrain without the jarring impact of the shocks reaching their physical limit. Constructed from durable billet aluminum and finished in an anodized blue to match the factory DSSV hardware, these extenders offer a professional fit and finish.

• Increases front droop travel from 2 inches to over 3 inches
• Specifically engineered for factory Multimatic DSSV front shocks
• CNC-machined billet aluminum construction
• Blue anodized finish for corrosion resistance and aesthetic matching
• Straightforward 1-hour DIY installation
• Manufacturer Part Number: 110-91256

Fits 2024-2025 Chevrolet Silverado 2500 HD ZR2 and GMC Sierra 2500 HD AT4X.

Cognito SM Series Upper Control Arms are engineered as a direct-fit upgrade for the high-performance ZR2 and AT4X platforms. These boxed sheet metal arms provide the necessary geometry corrections required when maintaining or enhancing off-road performance. By correcting the ball joint angle and adding caster, this kit ensures your front-end alignment stays within spec while providing the ample droop travel needed for superior ride quality and suspension longevity.

Constructed in the USA, these arms feature a durable semi-gloss black powder-coated finish and come equipped with maintenance-free pivot bushings and ball joints. This design eliminates the need for frequent greasing while offering a significant strength increase over the factory stamped-steel components.

• Manufacturer Part Number: 110-91252
• Direct replacement for 2500 HD ZR2 and AT4X models only
• Boxed sheet metal construction for maximum rigidity
• Maintenance-free pivot bushings and ball joints
• Corrected ball joint angles for improved travel
• Added caster for better high-speed stability
• Estimated 2-hour DIY installation
• Semi-gloss black powder coat finish
• Made in the USA

Fits select 2020-2025 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD (2WD/4WD).

Level the stance of your heavy-duty truck with the Cognito Standard 3-Inch Leveling Lift Kit. This system is engineered to eliminate the factory nose-down rake, providing a more aggressive profile while increasing ground clearance for larger wheel and tire combinations. Unlike generic spacers, Cognito kits are designed with suspension geometry in mind to help maintain ride quality and prevent premature wear on factory components.

Built for durability and precision fitment, this kit addresses the common requirements of both 2WD and 4WD 2500/3500 HD platforms. Whether you are daily driving, hauling, or heading off-road, this leveling solution provides the height you need without compromising the structural integrity of your truck's drivetrain.

• Manufacturer Part Number: 110-91247
• Lift Height: 3 Inches
• Fitment: 2WD/4WD Single Rear Wheel (SRW) and Dually models
• Compatible with 2020-2025 Silverado/Sierra 2500/3500 HD
• Engineered for a level stance and improved tire clearance

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD 2WD/4WD models. This Cognito Standard Leveling Kit (MPN 110-91246) provides a 3-inch front lift to eliminate factory rake and allow for larger tire and wheel combinations without compromising suspension geometry.

The kit features Cognito Standard upper control arms engineered with a modified ball joint angle. This design correction is critical for lifted applications as it prevents the ball joint from reaching its travel limits, ensuring the suspension retains ample droop travel for a comfortable ride and long-term component durability. The included torsion bar adjuster keys are forged for maximum strength and provide a secure, bolt-on solution for leveling the front of the vehicle with the rear.

• Yields 3 inches of front lift
• Includes Cognito Ball Joint Standard Upper Control Arm Kit
• Corrected ball joint angles for increased service life
• Forged torsion bar adjuster keys for superior durability
• Front shock spacers included to maintain proper shock stroke
• Accommodates up to 35 x 12.5-inch tires on a 9-inch wide wheel (5-inch backspacing)
• Estimated 3-hour installation time
• Made in the USA
• Manufacturer Part Number: 110-91246

Fits 2020-2024 Chevrolet Silverado and GMC Sierra 2500/3500 2WD/4WD trucks.

The Cognito Ball Joint Upper Control Arm (UCA) Kit is an essential upgrade for heavy-duty trucks with leveled or lifted suspension. This kit corrects the ball joint operating angles that are often compromised when increasing front ride height, ensuring better alignment and reducing premature wear on suspension components. By optimizing the geometry, these arms also increase allowable droop travel, which significantly improves ride quality over rough terrain.

Built for durability and performance, these control arms feature a semi-gloss black powder coat finish for superior corrosion resistance and come equipped with heavy-duty ball joints designed to withstand the rigors of heavy-duty use. This kit is a direct-fit replacement for factory stamped-steel upper control arms.

• Corrects ball joint angles for leveled or lifted applications
• Increases usable suspension droop travel
• Heavy-duty ball joints included for long-term durability
• Semi-gloss black powder coat finish for maximum protection
• Direct-fit replacement for factory upper control arms
• Manufacturer Part Number: 110-91244

Fits select 2023-2025 Chevrolet Colorado and GMC Canyon models (Trail Boss, ZR2, AT4, and AT4X). This Cognito 110-91242 Standard Leveling Kit is engineered to eliminate the factory rake while preserving the refined ride quality of your truck's suspension system.

Because the Colorado ZR2 and Canyon AT4X models utilize a higher factory ride height via spring preload, this kit utilizes a specialized approach to maintain performance. On Trail Boss and AT4 models, the kit provides a full 2-inch front lift using a combination of billet strut spacers and preload rings. For ZR2 and AT4X models equipped with Multimatic DSSV dampers, only the billet strut spacers are installed to provide a 1-inch front lift, ensuring proper droop travel is maintained and the DSSV internal valving remains within its optimal operating range.

• Manufacturer Part Number: 110-91242
• Lift Height: 2-inch (Trail Boss/AT4) or 1-inch (ZR2/AT4X)
• Construction: High-quality billet aluminum strut spacers
• Includes: Strut spacers and preload rings (preload rings not used on ZR2/AT4X)
• Maintains factory droop travel for optimal ride quality
• Compatible with Multimatic DSSV dampers
• Warning: Not compatible with trucks equipped with the OEM lift kit option

Fits select 2019-2025 Chevrolet Silverado 1500 and GMC Sierra 1500 2WD/4WD models, including vehicles equipped with ARC Adaptive Ride Control (Denali models).

Cognito Ball Joint Upper Control Arms are engineered to resolve suspension travel limitations common in lifted applications. By modifying the ball joint angle, these arms optimize droop travel, which is essential for maintaining ride quality and preventing component wear when the suspension is extended. This tubular design provides a direct bolt-on upgrade that eliminates the need to cut factory service perches, making them ideal as either a stock replacement or a performance upgrade for leveled and lifted trucks.

• Tubular steel construction with a durable semi-gloss black powder coating
• Corrected ball joint angle for optimized geometry in lifted applications
• Includes heavy-duty, high-angle, maintenance-free ball joints
• Equipped with maintenance-free polyurethane pivot bushings and new crush sleeves
• Compatible with factory ARC Adaptive Ride Control systems
• Simple bolt-on installation with no cutting or welding required
• Estimated 2-hour DIY installation time
• Proudly Made in the USA
• Manufacturer Part Number: 110-91207

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD (2WD/4WD).

The Cognito Front Fender Liner Tie Back Kit is an essential upgrade for owners looking to fit larger tires and aggressive wheel offsets on late-model GM heavy-duty trucks. These brackets serve as a direct bolt-on replacement for the stock rear lower fender liner brackets. By pulling the lower rear portion of the front wheel well liner further back toward the cab, this kit creates the necessary clearance to prevent rubbing without sacrificing the professional look of the wheel well.

Constructed for durability and a factory-style finish, the brackets are powder-coated in semi-gloss black. For trucks with a 3-inch leveling kit, this modification allows for up to 35x12.5-inch tires on 9-inch wide wheels (-18mm to +18mm offset) or 10-inch wide wheels (0mm to +10mm offset). It also enables the use of 37x12.5-inch tires on 9-inch wide wheels with a +18mm offset.

• Replaces OE rear lower fender liner brackets to increase tire clearance
• Durable semi-gloss black powder-coated finish
• Supports up to 37-inch tires on select wheel/offset combinations
• Simple 30-minute DIY installation
• Compatible with factory mud guards (requires trimming)
• Includes all necessary installation hardware
• Made in the USA
• Manufacturer Part Number: 110-91193

Fits 2011-2019 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD (2WD/4WD) models.

The Cognito Ball Joint SM Series Upper Control Arm (UCA) Kit is engineered as a robust upgrade for stock, leveled, or lifted applications. These arms are designed to solve the common issue of restricted suspension movement by improving allowable droop travel, which is essential for maintaining a smooth ride and preventing premature wear on suspension components. By correcting the ball joint angle for modified ride heights, this kit ensures the ball joints operate within their intended range.

Each arm is constructed from boxed sheet metal that is CNC robot welded for maximum structural integrity and precision. The assembly is finished in a durable semi-gloss black powder coat to resist corrosion and harsh road conditions. This kit also features polyurethane bushings for a more controlled steering feel and incorporates added caster to improve high-speed stability and tracking.

• Corrected ball joint angles for leveled and lifted applications
• Boxed sheet metal construction with CNC robot welds
• Improved droop travel for superior ride quality
• Durable semi-gloss black powder coat finish
• Polyurethane bushings for increased longevity and response
• Added caster for better steering geometry
• Approximate 1.5-hour DIY installation time
• Made in the USA
• Manufacturer Part Number: 110-91071

Fits 2019-2025 Chevrolet Silverado 1500 and GMC Sierra 1500 (2WD/4WD).

The Cognito 110-91044 Economy 2-Inch Leveling Kit is a precision-engineered suspension solution designed to eliminate the factory nose-down rake of your truck while maintaining adequate droop travel for superior ride quality. This kit provides a total of 2 inches of front lift by combining a 0.75-inch strut spacer with a 0.5-inch preload spacer, keeping your suspension within functional limits without the guesswork of pieced-together kits.

Proudly engineered and manufactured in the USA, each component is constructed from heavy-duty steel and finished with a durable semi-gloss black powder coating for maximum corrosion resistance. While this kit is designed to utilize factory upper control arms, Cognito recommends upgrading to their performance control arms for increased durability and longevity. Installation is straightforward with an estimated 2.5-hour DIY time using the included hardware.

• Provides 2 inches of front lift for a level stance
• Includes 0.75-inch strut spacers and 0.5-inch preload spacers
• Constructed from heavy-duty steel with semi-gloss black powder coat
• Fits up to 33 x 11.5-inch tires on a 9-inch wide wheel (5.75-inch backspacing)
• Maintains factory droop travel for consistent ride quality
• Engineered, manufactured, and assembled in the USA
• Manufacturer Part Number: 110-91044

Fits 2011-2024 Chevrolet Silverado and GMC Sierra 2500HD/3500HD (2WD/4WD).

The Cognito 110-91031 1-inch block and U-bolt kit is engineered to provide a precise 1-inch rear lift for heavy-duty GM trucks. The kit features durable cast steel blocks finished in a semi-gloss black powder coat for superior corrosion resistance and long-term durability. To ensure a secure installation, the package includes 16-inch straight, heavy-duty zinc-plated U-bolts designed specifically for the higher torque and load demands of the 2500HD and 3500HD chassis. Made in the USA, this kit maintains proper suspension geometry while providing the necessary clearance or leveling required for your application.

• Part Number: 110-91031
• Lift Height: 1.0 Inch
• U-Bolt Length: 16.0 Inch
• U-Bolt Shape: Straight
• Block Material: Cast Steel
• Hardware: Zinc Plated U-Bolts
• Finish: Semi-Gloss Black Powder Coat
• Origin: Made in the USA

Fits 2020-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD models equipped with 5-9 inches of rear lift.

The Cognito SM Series Limited Dynamic Geometry (LDG) Traction Bar Kit is engineered to eliminate axle wrap—the unwanted rotation of the rear axle housing under load—without binding or restricting necessary suspension travel. Constructed from heavy-duty boxed sheet metal, these bars provide the structural rigidity required for high-torque HD applications while maintaining factory-level ride quality.

Equipped with large rod ends and split adjuster nuts, the SM Series allows for precise tuning of the bar length once installed. The kit includes application-specific frame and axle mounting brackets to ensure a secure fitment. Each component is finished in a durable semi-gloss black powder coat for superior corrosion resistance.

• Manufacturer Part Number: 110-90952
• Design: Limited Dynamic Geometry (LDG) boxed sheet metal construction
• Compatibility: Engineered for trucks with 5-9 inches of rear lift
• Hardware: Includes large rod ends, split adjuster nuts, and all mounting brackets
• Installation: Bolt-on design with an estimated 3-hour DIY install time
• Finish: Semi-gloss black powder coat
• Country of Origin: Made in the USA
• Note: Not compatible with S&B or Titan aftermarket fuel tanks.