Fits 2009-2014 Ford F-150 2WD and 4WD models.

The Hellwig EZ-990 Helper Spring kit (MPN 989) provides a robust solution for F-150 owners requiring additional support for light towing and hauling. These medium-duty springs assist in maintaining a level ride height and improving overall vehicle control by reducing rear-end sag. Manufactured in California using heat-treated ASTM 5160 alloy spring steel, these units offer up to 2,000 lbs of level load carrying capacity.

This kit features a step bracket style leaf design that bolts directly to the factory leaf pack using common hand tools. The included heavy-duty U-bolts allow for precise tuning, letting you adjust the tension independently to compensate for uneven side-to-side loads. All components are finished with durable powder coating and plating to ensure long-term corrosion resistance in harsh underbody environments.

• Manufacturer Part Number: 989
• Load Capacity: Up to 2,000 lbs
• Material: Heat-treated ASTM 5160 alloy spring steel
• Finish: Powder-coated and plated components
• Adjustability: Tunable via heavy-duty U-bolts
• Installation: Simple bolt-on design with included hardware
• Warranty: Limited Lifetime Warranty

Fits select 2007-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 models.

The Hellwig EZ-990 (EZ Level) Helper Spring kit is a medium-duty suspension solution engineered to provide up to 2,000 lbs of level load carrying capacity. Designed specifically for light-duty towing and hauling, these springs help eliminate rear-end sag and improve vehicle control. The step-bracket style leaf springs can be adjusted independently, allowing you to compensate for uneven side-to-side loads or varying trailer tongue weights by simply adjusting the heavy-duty U-bolts.

Constructed from heat-treated ASTM 5160 alloy spring steel in California, these units are built for longevity and consistent performance. The kit features a simple bolt-on design that utilizes common hand tools for installation, requiring no permanent modifications to your factory suspension. Every component is finished with a durable powder coating or plating to resist corrosion in harsh undercar environments.

• Level load carrying capacity up to 2,000 lbs
• Manufactured from high-strength, heat-treated ASTM 5160 alloy spring steel
• Fully adjustable U-bolt system for tunable tension and load support
• Easy bolt-on installation with common hand tools
• Durable powder-coated and plated hardware for maximum protection
• Includes all necessary heavy-duty mounting hardware and instructions
• Manufacturer Part Number: 987
• Limited Lifetime Warranty

Fits select 1999-2007 Chevrolet Silverado 1500 and GMC Sierra 1500 models, including Classic, Hybrid, SS, and K1500 variants.

The Hellwig EZ-990 medium-duty helper spring kit is engineered to provide additional rear-end support for vehicles that frequently haul light to medium loads or tow small trailers. By reinforcing the factory leaf pack, these helper springs improve vehicle control, reduce sag, and enhance stability without permanently hardening the ride. Each kit is manufactured in California using heat-treated ASTM 5160 alloy spring steel for long-term durability and consistent performance.

This system features a fully adjustable bolt-on design. Using the included heavy-duty U-bolts and hardware, installers can tune the tension to match specific load requirements or even adjust them independently to compensate for uneven side-to-side weight distribution. The components are finished with a combination of powder coating and plating to resist corrosion in harsh environments.

• Manufacturer Part Number: 986
• Level load carrying capacity: Up to 2,000 lbs
• Material: Heat-treated ASTM 5160 alloy spring steel
• Hardware: Heavy-duty powder-coated and plated U-bolts and brackets
• Adjustment: Independent side-to-side tunability
• Installation: Simple bolt-on with common hand tools; no drilling required
• Warranty: Limited Lifetime Warranty

Fits select 1988-1998 Chevrolet/GMC C1500 and K1500, and 2007-2020 Toyota Tundra (2WD/4WD).

The Hellwig EZ-990 Medium-Duty Helper Spring kit is a versatile, bolt-on suspension solution designed to restore a level ride height and improve vehicle control during towing and hauling. Manufactured from heat-treated ASTM 5160 alloy spring steel in Hellwig's California facility, these springs provide up to 2,000 lbs of level load-carrying capacity. The fully adjustable design allows you to tune the spring rate for uneven side-to-side loads or varying weight requirements using the included heavy-duty U-bolts.

This medium-duty kit is ideally suited for light-duty trucks and SUVs that need additional assistance when loaded without sacrificing ride quality. The simple bolt-on design uses common hand tools for a hassle-free installation, mounting directly to the factory leaf springs to reduce rear-end sag and improve stability.

• Level load capacity: Up to 2,000 lbs
• Material: Heat-treated ASTM 5160 alloy spring steel
• Finish: Heavy-duty powder-coated and plated components
• Adjustable rate for independent side-to-side tuning
• Simple bolt-on installation with common hand tools
• Includes heavy-duty hardware and installation instructions
• Manufacturer Part Number: 985
• Limited Lifetime Warranty
• Made in the USA

Fits 2004-2008 Ford F-150 (2WD/4WD) including XL, XLT, FX2, FX4, King Ranch, Lariat, Limited, and STX models.

The Hellwig EZ-990 Helper Spring kit is a medium-duty suspension solution designed to provide up to 2,000 lbs of level load-carrying capacity for drivers who frequently tow light trailers or haul moderate payloads. This step-bracket style leaf spring kit improves vehicle control and stability by reducing rear-end sag and body roll without permanently hardening the ride.

Manufactured in Hellwig's California facility from heat-treated ASTM 5160 alloy spring steel, these units are built for durability and consistent performance. The kit includes heavy-duty powder-coated and plated hardware for corrosion resistance. The simple bolt-on design installs with common hand tools, and the included U-bolts allow for independent side-to-side adjustment to compensate for uneven loads.

• Load Capacity: Up to 2,000 lbs level load
• Material: Heat-treated ASTM 5160 alloy spring steel
• Adjustment: Fully tunable via heavy-duty U-bolts
• Installation: Simple bolt-on design; no drilling usually required
• Manufacturer Part Number: 984
• Warranty: Limited Lifetime Warranty

Fits 1990-2011 Ford Ranger and Mazda B2300, B2500, B3000, and B4000 2WD/4WD models.

The Hellwig EZ-990 Helper Spring kit is a medium-duty suspension solution designed to restore a level ride height and improve vehicle control when towing or hauling. These springs provide up to 2,000 lbs of level load-carrying capacity, making them ideal for light-duty trucks and SUVs that experience rear-end sag under load. The adjustable design allows you to fine-tune the tension using heavy-duty U-bolts to compensate for uneven side-to-side loads or changing cargo requirements.

Manufactured in California from heat-treated ASTM 5160 alloy spring steel, these units are built for long-term durability. Each kit includes high-quality powder-coated and plated components to resist corrosion in harsh undercar environments. The simple bolt-on design installs easily with common hand tools, mounting directly to the factory leaf pack to provide immediate support without a harsh unloaded ride.

• Manufacturer Part Number: 983
• Load Capacity: Up to 2,000 lbs
• Material: Heat-treated ASTM 5160 alloy spring steel
• Finish: Powder-coated and plated hardware
• Fully adjustable U-bolt system for custom tuning
• Includes all necessary heavy-duty mounting hardware and instructions
• Limited Lifetime Warranty

Fits 2003-2008 Dodge Ram 1500 2WD and 4WD models.

The Hellwig EZ-990 Helper Spring kit is a medium-duty suspension upgrade designed to improve vehicle control and stability while hauling or towing. These springs provide up to 2,000 lbs of level load-carrying capacity, effectively reducing rear-end sag and preventing bottoming out. Manufactured from heat-treated ASTM 5160 alloy spring steel in California, these units are built for durability and consistent performance under load.

The EZ-990 features a step-bracket style leaf design that bolts directly to the factory leaf pack using common hand tools. The included heavy-duty U-bolts allow for independent side-to-side adjustment, making it easy to compensate for uneven loads or changing towing requirements. This kit includes all necessary powder-coated and plated hardware for a complete installation.

• Load Capacity: Up to 2,000 lbs
• Material: Heat-treated ASTM 5160 alloy spring steel
• Finish: Black powder-coated components with plated hardware
• Design: Step bracket style leaf for medium-duty assistance
• Adjustability: Fully tunable via included heavy-duty U-bolts
• Installation: Simple bolt-on design with no specialized tools required
• Warranty: Limited Lifetime Warranty
• Manufacturer Part Number: 982

Fits 2005-2013 Toyota Tacoma (Base, Pre Runner, and X-Runner).

Hellwig EZ-990 medium-duty helper springs provide essential support for light towing and hauling, allowing your 2005-2013 Toyota Tacoma to maintain a level stance under load. These units are designed to improve vehicle control and stability by providing up to 2,000 lbs of additional level load carrying capacity. Unlike fixed suspension upgrades, these springs are fully tunable; using simple hand tools, you can adjust the heavy-duty U-bolts to match your specific load requirements or to correct uneven side-to-side sag.

Built for durability and performance, these helper springs are manufactured in Hellwig's California facility using heat-treated ASTM 5160 alloy spring steel. The kit includes heavy-duty powder-coated and plated components to resist corrosion in harsh environments. Installation is a straightforward bolt-on process requiring only common hand tools, with no drilling required.

• Level load capacity: Up to 2,000 lbs
• Material: Heat-treated ASTM 5160 alloy spring steel
• Finish: Powder-coated and plated components for corrosion resistance
• Adjustment: Independent side-to-side tuning via heavy-duty U-bolts
• Installation: Simple bolt-on design with no drilling required
• Warranty: Limited Lifetime Warranty
• Manufacturer Part Number: 981

Fits 2014-2023 Toyota Tacoma models including Base, Pre Runner, SR, SR5, Limited, Trail, and TRD Sport/Off-Road/Pro.

The Hellwig EZ-990 Helper Spring kit provides a medium-duty suspension solution for Toyota Tacoma owners looking to restore ride height and maintain control while hauling or towing. These springs are designed to assist the factory leaf pack when under load, effectively reducing rear-end sag, body roll, and instability. Each kit is fully tunable via heavy-duty U-bolts, allowing you to adjust the tension to match your specific load requirements or even level out uneven side-to-side weight distribution.

Manufactured in California, these helper springs are forged from heat-treated ASTM 5160 alloy spring steel for long-term durability and resistance to fatigue. The components feature a combination of heavy-duty powder coating and plating to protect against corrosion in harsh environments. Installation is a straightforward bolt-on process using common hand tools, requiring no drilling or permanent vehicle modifications.

• Level load carrying capacity: Up to 2,000 lbs
• Material: Heat-treated ASTM 5160 alloy spring steel
• Finish: Black powder-coated springs with plated hardware
• Adjustment: Fully adjustable U-bolt system for custom load leveling
• Installation: Simple bolt-on design with included hardware
• Manufacturing: Made in the USA
• Warranty: Limited Lifetime Warranty
• Manufacturer Part Number: 980

Fits 2015-2022 Ford F-150 2WD/4WD models including XL, XLT, Lariat, King Ranch, Platinum, Limited, Raptor, SSV, Tremor, and Police Responder.

The Hellwig EZ-990 helper spring kit is a medium-duty suspension solution designed to improve control and maintain a level ride height during towing or hauling. Manufactured in California from heat-treated ASTM 5160 alloy spring steel, these springs provide up to 2,000 lbs of additional level load-carrying capacity. The step-bracket style leaf design allows for independent side-to-side adjustment, making it a professional-grade fix for uneven loads or rear-end sag.

Installation is straightforward with a 100% bolt-on design that utilizes common hand tools. The kit features heavy-duty powder-coated and plated components for long-term durability against the elements. Included adjustable U-bolts allow you to fine-tune the tension to match your specific load requirements, ensuring your F-150 remains stable and predictable under load.

• Level Load Capacity: Up to 2,000 lbs
• Material: Heat-treated ASTM 5160 alloy spring steel
• Construction: Step-bracket leaf style with heavy-duty U-bolts
• Finish: Powder-coated and plated hardware for corrosion resistance
• Installation: Simple bolt-on design; no drilling required
• Adjustability: Tunable for uneven side-to-side loads
• Manufacturer Part Number: 978
• Warranty: Limited Lifetime Warranty

Fits select 2016-2023 Ford F-250 and F-350 Super Duty models (XL, XLT, Lariat, King Ranch, Platinum, and Limited) equipped with factory contact overload springs.

The Hellwig 9706 Contact Helper Spring kit is engineered to provide immediate support and stability when your truck is under load. By adding two additional leaves directly to the factory contact overload springs, this kit ensures the suspension engages the contact pads sooner. This results in significantly reduced rear-end sag and improved level-load carrying capacity, making it an essential upgrade for heavy towing and hauling.

These helper springs are designed for a straightforward installation, mounting directly to the existing factory contact springs. Because they only engage when the vehicle is loaded, they leave your factory ride quality unchanged during normal daily driving when the bed is empty.

• Includes 2 additional leaves to augment factory contact helpers
• Increases spring rate when loaded to reduce sag and improve handling
• Preserves comfortable factory ride quality when the vehicle is unladen
• Simple bolt-on installation to factory mounting points
• Manufacturer Part Number: 9706
• Limited Lifetime Warranty

The Hellwig Contact Helper Spring Kit is engineered to increase your truck's load-carrying capacity by reinforcing the factory overload springs. By adding two additional leaves to the existing contact helper pack, this kit ensures the suspension engages the factory contact pads earlier as the vehicle is loaded. This design provides superior support, reduces rear-end sag, and maintains a level stance during heavy hauling or towing.

Fits select 1988-2023 Ford F-250/F-350, F-250/F-350 Super Duty, Chevrolet Silverado 3500 HD, and GMC Sierra 3500 HD.

Because these leaves only engage when the vehicle is under load, they do not affect ride quality when the truck is empty, preserving the original factory feel. Manufactured from heat-treated alloy steel, the kit mounts directly to the factory contact springs for a straightforward installation that requires no permanent modifications.

• Includes 2 additional leaves per side to increase spring rate under load
• Engages factory contact pads sooner to reduce sag and improve stability
• Maintains factory ride quality when the vehicle is unladen
• Constructed from durable heat-treated alloy steel
• Includes all necessary mounting hardware for an easy installation
• Manufacturer Part Number: 9703
• Limited Lifetime Warranty

Fits select 1986-2005 Chevrolet Astro, GMC Safari, Dodge Dakota/Durango, Ford Explorer, GMC Jimmy, and Toyota Tacoma.

The Hellwig Load Pro 15 (LP-15) helper spring kit is engineered to restore a level ride height and improve handling when your vehicle is under load. By reinforcing the factory leaf pack, these springs provide up to 1,500 lbs of additional level load carrying capacity (not to exceed the vehicle's GVWR). Manufactured in Hellwig's California facility from heat-treated ASTM 5160 alloy spring steel, these units are designed to withstand heavy hauling while maintaining vehicle control and stability.

• Increased Stability: Reduces rear-end sag and improves steering control while towing or hauling.
• Adjustable Tension: The heavy-duty U-bolts allow you to fine-tune the spring rate to match your specific load requirements.
• Durable Finish: Components are both plated and powder-coated to resist corrosion and road debris.
• Easy Installation: Simple bolt-on design utilizing common hand tools for a hassle-free setup.

Specifications & Kit Contents:

• Manufacturer Part Number: 815
• Material: Heat-treated ASTM 5160 alloy spring steel
• Load Capacity: Up to 1,500 lbs
• Kit Includes: Spring leaves, heavy-duty U-bolts, plated and powder-coated hardware, and installation instructions
• Warranty: Limited Lifetime Warranty

Fits select 2019-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 2WD/4WD models, including Silverado 1500 LTD and GMC Sierra 1500 Limited.

The Hellwig Pro Series 61917 Silent Support System is engineered to improve towing and hauling performance by providing up to 2,500 lbs of level load capacity. These helper springs feature an over-axle mounting design that effectively manages heavy loads, reduces rear-end sag, and improves overall vehicle stability. Equipped with Hellwig’s proprietary Silent Support System bushings, this kit ensures a quiet ride without the metal-on-metal noise common in other suspension upgrades.

Each kit is fully tunable, allowing you to adjust the spring rate to match your specific load requirements or ride height preferences. The bolt-on design utilizes factory mounting points for a straightforward installation process that does not require permanent modifications to your truck's chassis.

• Manufacturer Part Number: 61917
• Load Capacity: Up to 2,500 lbs
• Design: Over-axle mounting with tunable spring rate
• Noise Reduction: Integrated Silent Support System polyurethane bushings
• Compatibility: 2019-2022 GM 1500 series trucks (2WD/4WD)

Fits select 1967-2020 Chevrolet and GMC C/K 10/1500, 20/2500, 30/3500, Silverado 1500, Colorado, and Canyon trucks.

The Hellwig Pro Series Helper Spring kit (MPN 61912) is engineered to provide up to 2,500 lbs of level load capacity, effectively reducing rear-end sag and improving stability while towing or hauling. Designed for 1/2-ton, 3/4-ton, and 1-ton applications, these springs utilize an over-axle mounting design that bolts on for a more efficient installation compared to traditional under-axle setups.

This kit features Hellwig’s proprietary Silent Support System, which incorporates high-durometer polyurethane bushings to prevent metal-on-metal contact and eliminate the noise typically associated with helper springs. The tunable design allows you to adjust the spring tension to match your specific load requirements, ensuring your vehicle remains level and controlled under varying weights.

• Level Load Capacity: Up to 2,500 lbs
• Silent Support System: Polyurethane bushings for quiet operation
• Mounting: Over-axle design for easier installation and clearance
• Adjustability: Fully tunable spring rate for specific load demands
• Manufacturer Part Number: 61912
• Warranty: Limited Lifetime Warranty

Fits select 1965-2014 Ford Bronco, F-100, F-150, F-250, and Dodge Ram 1500/2500/3500, D-Series, and W-Series trucks (5.9L).

Engineered for 1/2-ton, 3/4-ton, and 1-ton applications, the Hellwig Pro Series Helper Spring provides up to 2,500 lbs of level load capacity. This over-axle mounting system is designed to eliminate rear-end sag, reduce body roll, and improve handling when towing or hauling heavy loads. The tunable design allows you to adjust the spring rate to match your specific load requirements, ensuring your vehicle remains level and stable.

Equipped with Hellwig's Silent Support System, this kit uses specialized polyurethane bushings to eliminate the noise and friction typically associated with heavy-duty helper springs. The bolt-on installation requires no drilling, making it an ideal upgrade for trucks that frequently carry campers, trailers, or heavy equipment.

• Part Number: 61902
• Load Capacity: Up to 2,500 lbs
• Mounting: Over-axle design for quick installation
• Bushing Type: Silent Support System polyurethane bushings
• Adjustability: Fully tunable for varying loads
• Warranty: Limited Lifetime Warranty

Note: If your vehicle is equipped with factory contact overload springs, please verify fitment for specific clearances before installation.

Fits select 1999-2025 Chevrolet Silverado 2500/HD, GMC Sierra 2500/HD, Ford F-250/F-350 Super Duty, and RAM 1500/2500/3500 trucks.

Improve your truck's load-carrying capability and eliminate rear-end sag with the Hellwig Pro Series Helper Spring kit. Engineered for 1/2-ton, 3/4-ton, and 1-ton applications, this over-axle mounting system provides up to 2,500 lbs of additional level load capacity. This kit is designed to support heavy towing and hauling while maintaining vehicle stability and safety.

The Pro Series features Hellwig's proprietary Silent Support System, utilizing specialized bushings that prevent metal-on-metal contact, ensuring quiet operation when the vehicle is unloaded. The tunable design allows you to adjust the spring rate to match your specific load requirements, providing a custom suspension feel without the maintenance of air bags. Installation is straightforward, bolting directly over the factory leaf pack for a secure fit.

• Manufacturer Part Number: 61901
• Level Load Capacity: Up to 2,500 lbs
• Design: Over-axle mounting
• System: Silent Support System with noise-reducing bushings
• Adjustability: Fully tunable for varying loads
• Warranty: Limited Lifetime Warranty
• Application: Compatible with factory contact overload springs (check fitment)

Fits select 2017-2022 Mercedes-Benz and Freightliner Sprinter 2500 and 3500 vans.

The Hellwig Pro Series Silent Support System provides up to 2,500 lbs of level load capacity, making it an essential upgrade for 3/4-ton and 1-ton Sprinter applications frequently used for heavy hauling or camper conversions. Designed with an over-axle mounting configuration, this helper spring kit bolts on for a straightforward installation that restores ride height and improves stability under load. The tunable design allows owners to adjust the rate of support based on specific cargo requirements.

• Up to 2,500 lbs Level Load Capacity
• Silent Support System bushings for quiet operation
• Over-axle mounting design for simplified installation
• Tunable spring rate for customized load management
• Fits multi-leaf spring applications only
• Limited Lifetime Warranty
• Manufacturer Part Number: 61614

Fits select 2007-2019 Chevrolet Express and GMC Savana 1500/2500 vans without rear A/C. This Hellwig Pro Series 61609 helper spring kit is a tunable load-leveling solution designed to restore vehicle ride height, improve stability, and reduce sag under heavy loads.

Featuring the Silent Support System, these springs use specialized bushings to provide quiet operation during normal driving. The over-axle mounting design allows for a straightforward installation that integrates with the factory suspension to provide up to 2,500 lbs of additional level load capacity. These springs are fully tunable, allowing you to adjust the tension to match your specific towing or hauling requirements.

• Manufacturer Part Number: 61609
• Level Load Capacity: Up to 2,500 lbs
• Design: Over-axle mounting for quick installation
• Technology: Silent Support System bushings for noise-free performance
• Adjustability: Tunable for specific load requirements
• Fits 1/2-ton and 3/4-ton GM van applications without rear A/C
• Limited Lifetime Warranty included

Fits select 2004-2022 Ford F-150, 2013 Chevrolet Silverado/Express/Suburban 2500, 2013 GMC Sierra/Savana/Yukon XL 2500, and 2013 Ram 2500.

The Hellwig 61607 Pro Series Helper Spring Kit is engineered to restore ride height and improve vehicle stability under heavy loads. With a level load capacity of up to 2,500 lbs., these springs provide the necessary support to reduce rear-end sag and improve steering control while towing or hauling. The over-axle mounting design facilitates a straightforward installation by bolting onto the existing factory leaf pack, while the tunable design allows users to adjust the spring rate to match specific load requirements.

• Manufacturer Part Number: 61607
• Level Load Capacity: Up to 2,500 lbs.
• Silent Support System: Specialized bushings reduce noise and friction during spring cycle
• Mounting Style: Over-axle design for simplified installation
• Construction: Heat-treated alloy steel for long-term durability
• Tunability: Adjustable rate to balance load support and ride quality
• Limited Lifetime Warranty

Fits select 1968-2012 Nissan, Chevrolet, GMC, Ford, Dodge, Mazda, Plymouth, Toyota, and Mitsubishi models. This Hellwig EZ-550 helper spring kit is a light-duty suspension solution designed to provide up to 500 lbs of level load-carrying capacity for small trucks, SUVs, and vans. By providing assistance to the factory leaf pack, these springs improve vehicle control and stability during light towing or hauling scenarios.

Constructed from heat-treated ASTM 5160 alloy spring steel in Hellwig's California facility, each component is powder-coated or plated for long-term corrosion resistance. The simple bolt-on design installs with common hand tools and features fully adjustable heavy-duty U-bolts. This adjustability allows for fine-tuning the spring tension to match specific load requirements or to compensate for uneven side-to-side weight distribution.

• Manufactured from heat-treated ASTM 5160 alloy spring steel
• Rated for up to 500 lbs of level load carrying capacity
• Fully adjustable U-bolts for precise load leveling
• Heavy-duty powder-coated and plated hardware for durability
• Direct bolt-on installation requires no drilling
• Manufacturer Part Number: 550
• Limited Lifetime Warranty