Fits 2007-2018 Jeep Wrangler JK and Wrangler JK Unlimited (Rubicon, Sahara, Sport, and X) with 2-in. to 6-in. suspension systems.

When lifting a Jeep Wrangler JK, the factory geometry causes the front axle to pull to one side. The Rancho RS62115 Front Adjustable Track Bar provides the precise lateral adjustment needed to re-center the axle to its proper position, restoring handling performance and tracking. This heavy-duty bar is constructed from 1.375-in. OD DOM wall tubing (0.290-in. thickness) with forged ends to withstand the rigors of off-road use.

A standout feature is the inclusion of Rancho’s D2 high-articulation bushings. These grease-free, self-centering bushings reduce noise, vibration, and harshness (NVH) while allowing for maximum suspension movement. The bar is finished in a durable black powder coat to resist corrosion and bolts directly to the factory mounting points for a straightforward installation.

• Corrects axle alignment on vehicles with 2-in. to 6-in. lifts
• 1.375-in. OD heavy-duty DOM tubing with 0.290-in. wall thickness
• Maintenance-free D2 high-articulation bushings for improved ride quality
• Forged ends for superior strength and longevity
• Black powder-coat finish for rust and corrosion resistance
• Bolts directly to OE mounts
• Manufacturer Part Number: RS62115

Fits 2007-2018 Jeep Wrangler JK and JK Unlimited models equipped with Dana 30 or Dana 44 front axles and 3-inches or more of suspension lift.

Designed for serious off-road use, the Rancho high-clearance steering knuckles provide an additional 1.5-inches of clearance to protect steering components from rocks and trail obstacles. By raising the steering linkage, this kit helps align the geometry of the track bar and drag link, effectively reducing bump steer and improving handling on lifted vehicles.

These knuckles are cast from high-strength steel to withstand the stresses of rock crawling and trail riding. Each component is finished in a durable red powder coat to resist rust and corrosion in harsh environments. Please note that installation requires Rancho track bar relocation bracket (RS62101) and flipped drag link (RS62102), both sold separately.

• Part Number: RS62100
• Clears steering components by adding 1.5-in. of height
• Constructed from high-strength steel for maximum durability
• Corrosion-resistant red powder-coat finish
• Reduces bump steer by optimizing steering geometry
• Includes two high-steer knuckles and two 3-in. bump stops
• Compatible with Dana 30 and Dana 44 front axles
• Backed by Rancho’s limited lifetime warranty

Fits 2014-2020 Ford F-150 (XL, XLT, Lariat, King Ranch, Platinum, Limited, FX4, SSV, STX).

The Rancho RS5000X series strut is engineered for durability and consistent ride control on and off-road. Utilizing a large twin-tube body and exclusive Progressive Engagement Valving, this strut is custom-tuned to manage initial impacts at low speeds while maintaining control during aggressive movement. The 60 PSI nitrogen gas charge minimizes air-to-oil mixture to prevent damping performance fade and foaming under heavy use.

Built to withstand extreme conditions, the RS55836 features a nitro-carburized piston rod for superior scuff and corrosion resistance, double-welded loops at critical stress points, and an application-specific sintered iron piston for enhanced structural integrity. The all-weather fluid ensures reliable operation in temperatures ranging from -40°F to 248°F.

• Series: RS5000X
• Manufacturer Part Number: RS55836
• Construction: Twin-tube gas pressurized (60 PSI)
• Valving: Progressive Engagement and Cross Tuned technology
• Piston Rod: Nitro-carburized for scuff and corrosion resistance
• Bushings: Natural rubber bushings and polyurethane rebound bumper
• Operating Temp: -40°F to 248°F (-40°C to 120°C)
• Included: Protective polyvinyl boot

Fits select 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks.

The Rancho RS5000X RS55832 front strut is engineered to provide a balanced ride for both on-road comfort and off-road performance. Utilizing Rancho's Cross Tuned technology, this twin-tube shock features a unique rebound valving system and a custom-tuned Compression Control Valve. These systems work together to regulate fluid transfer and absorb impacts without disc flutter, ensuring consistent control and responsiveness under varying road conditions.

Built for long-term durability, the RS5000X is constructed with a nitro-carburized piston rod to resist corrosion and scuffing, while double-welded loops provide additional strength at high-stress points. The 60 PSI nitrogen gas charge minimizes air-to-oil mixing to reduce damping fade and foaming during intensive use. A polyurethane rebound bumper and rubber bushings further help to absorb road harshness for a smoother overall ride.

• Manufacturer Part Number: RS55832
• Twin-tube body with all-weather fluid rated from -40 to 248°F
• Nitrogen gas pressurized to 60 PSI to minimize aeration and fade
• Nitro-carburized piston rod with application-specific sintered iron piston
• Exclusive Progressive Engagement Valving (PEV) for low-speed impact reduction
• Fluon-banded piston for enhanced seal durability
• Includes polyvinyl protective boot

Fits select 2014-2020 Chevrolet Silverado 1500, Silverado 1500 LD, Suburban, and Tahoe, as well as GMC Sierra 1500, Sierra 1500 Limited, Yukon, and Yukon XL.

The Rancho RS5000X Series front strut (RS55831) is engineered to bridge the gap between highway comfort and off-road control. Utilizing Rancho's exclusive Cross Tuned technology, this twin-tube strut features a unique rebound valving system and an advanced compression phase that manages the impact of harsh terrain while maintaining a smooth on-road profile. The Progressive Engagement Valving is specifically tuned to reduce initial impact at low speeds, significantly minimizing the jarring ride often associated with heavy-duty replacement shocks.

Built for durability in extreme environments, the RS55831 features a nitro-carburized piston rod for superior corrosion resistance and double-welded loops at high-stress points. The 2.25-inch twin-tube body is filled with all-weather fluid, allowing the unit to maintain consistent damping performance in internal temperatures ranging from -40°F to 248°F.

• Precision Valving: Cross Tuned technology and Progressive Engagement Valving for vehicle-specific handling.
• Nitrogen Gas Charged: Pressurized to 60 PSI to minimize aeration and shock fade.
• Heavy-Duty Construction: Sintered iron piston and nitro-carburized rod for enhanced structural integrity.
• Enhanced Seals: Low-friction, self-lubricating seal retains gas and oil for faster rebound and smoother compression.
• Protection Included: Polyvinyl protective boot and polyurethane rebound bumper to absorb ride harshness.
• Manufacturer Part Number: RS55831

Fits select 2014-2020 Cadillac Escalade/ESV, Chevrolet Silverado 1500/LD, Suburban, Tahoe, GMC Sierra 1500/Limited, and Yukon/XL models. The Rancho RS5000X (MPN: RS55830) is a high-performance twin-tube strut designed to deliver enhanced control and durability for late-model GM trucks and SUVs, whether on the highway or off-road.

Engineered with Rancho’s exclusive Progressive Engagement Valving, this strut is custom-tuned to reduce initial impact at low speeds while maintaining firm control during aggressive maneuvers. The large twin-tube body is filled with all-weather fluid capable of resisting internal temperatures from -40°F to 248°F, ensuring consistent damping in extreme environments. To minimize performance fade and oil foaming, the unit is nitrogen gas pressurized to 60 PSI.

• Durable Construction: Features a nitro-carburized piston rod to resist scuffs and corrosion, plus double-welded loops at stress areas.
• Precision Valving: Cross Tuned technology with specialized rebound and compression phases for improved handling.
• Ride Comfort: Polyurethane rebound bumpers and rubber bushings absorb harshness, while the fluon-banded piston provides quick response to road changes.
• Reliable Sealing: Low-friction, self-lubricating seal retains gas and oil for faster rebound and smoother compression.
• Included Components: Comes with a polyvinyl protective boot and is backed by a Limited Lifetime Warranty.

Fits select 2007-2014 Chevrolet Avalanche, Silverado 1500, Suburban 1500, Tahoe, and GMC Sierra 1500, Yukon, and Yukon XL 1500.

The Rancho RS5000X series front strut (RS55786) utilizes a patented progressive engagement valving system to deliver a smooth ride on-road while maintaining the damping control required for off-road environments. Built with a twin-tube body, this strut features a larger fluid capacity to dissipate heat more effectively, ensuring consistent performance during extreme temperature shifts ranging from -40°F up to 248°F.

• Precision Valving: Progressive Engagement Valving (PEV) is custom-tuned to reduce initial impact at low speeds and minimize disc flutter for improved handling.
• Resilient Construction: Features a nitro-carburized piston rod for superior corrosion resistance and double-welded loops at stress areas for added structural integrity.
• Anti-Foam Design: Nitrogen gas pressurized to 60 PSI minimizes the air-to-oil mixture to prevent foaming and damping performance fade during heavy use.
• Enhanced Protection: Includes a polyvinyl protective boot to shield the rod and a polyurethane rebound bumper to absorb ride harshness.
• Specifications: Application-specific sintered iron piston, low-friction self-lubricating seal, and fluon-banded piston for increased responsiveness.
• Manufacturer Part Number: RS55786

Fits select 2004-2012 Chevrolet Colorado and GMC Canyon models.

The Rancho RS5000X shock absorber (RS55610) is engineered to provide a smooth, controlled ride for both on-road commuting and off-road excursions. Featuring Rancho’s exclusive Progressive Engagement Valving (PEV), these shocks are custom-tuned for the Chevrolet Colorado and GMC Canyon to reduce initial impacts at low speeds while maintaining firm control during aggressive driving. The twin-tube body is nitrogen-gas pressurized to 150 PSI to minimize aeration and shock fade, ensuring consistent damping performance under heavy use.

Built for long-term durability, the RS5000X features a 16mm nitro-carburized piston rod for superior corrosion resistance and double-welded loops at high-stress points. The 35mm sintered iron piston provides structural integrity, while the fluon-banded seal ensures a consistent seal between the piston and pressure tube. Each shock includes a protective polyvinyl boot to shield the rod and oil seal from dirt, debris, and the elements.

• Part Number: RS55610
• Design: Twin-tube gas pressurized (150 PSI)
• Piston Rod: 16mm nitro-carburized for scuff and corrosion resistance
• Piston: 35mm sintered iron for enhanced structural strength
• Valving: Progressive Engagement Valving (PEV) for reduced harshness
• Operating Temp: All-weather fluid rated for -40°F to 248°F
• Hardware: Polyurethane rebound bumper and rubber bushings included
• Protection: Red polyvinyl protective boot included

Fits select 1984-2004 Dodge Dakota and Durango, as well as Toyota Pickup, T100, and Tacoma models. The Rancho RS5000X series leverages Cross Tuned technology to provide a performance upgrade for both on-road comfort and off-road capability. This twin-tube shock absorber features an exclusive Progressive Engagement Valving (PEV) system, specifically tuned to reduce initial impact harshness at low speeds while maintaining firm control during aggressive maneuvers.

• Advanced Valving: Progressive Engagement Valving and a custom-tuned Compression Control Valve regulate fluid transfer to minimize disc flutter and optimize motion control.
• Durable Construction: Built with a 16mm nitro-carburized piston rod for superior scuff and corrosion resistance, plus double-welded loops at high-stress mounting points.
• Thermal Management: Large twin-tube body is filled with all-weather fluid, designed to operate reliably in internal temperatures ranging from -40°F to 248°F.
• Fade Resistance: Pressurized with 150 PSI of nitrogen gas to reduce the air-to-oil mixture, effectively preventing foaming and damping performance fade.
• Included Hardware: Features a 35mm sintered iron piston, low-friction self-lubricating seals, polyurethane rebound bumpers, and a polyvinyl protective boot.

Fits select 1975-1998 Toyota Pickup and T100, Dodge Ram 50, Isuzu Pickup, Mazda B2000/B2200, and Plymouth Arrow trucks.

The Rancho RS5000X shock absorber utilizes an advanced Cross Tuned technology and an exclusive Progressive Engagement Valving system to deliver superior handling both on and off-road. Designed to minimize rough ride characteristics at low speeds while maintaining firm control during high-speed impacts, this shock provides a balanced, responsive driving experience. The large twin-tube body is filled with all-weather fluid to ensure consistent performance in extreme environments ranging from -40 to 248°F.

• Precision Construction: Features a 35mm sintered iron piston and a 16mm nitro-carburized piston rod for maximum resistance to scuffs and corrosion.
• Gas Pressurized: Nitrogen gas charged to 150 PSI to minimize air-to-oil mixing, significantly reducing damping fade and foaming during heavy use.
• Enhanced Durability: Double-welded loops at stress areas and a low-friction, self-lubricating seal provide long-term reliability.
• Ride Quality: A fluon-banded piston and polyurethane rebound bumper work together to absorb harsh impacts and improve responsiveness to changing road conditions.
• Protection: Includes a polyvinyl protective boot to shield the rod and seal from debris.
• MPN: RS55601

Fits select 2003-2024 Toyota 4Runner and 2007-2014 Toyota FJ Cruiser models.

The Rancho RS5000X (part number RS55397) is a twin-tube gas-pressurized rear shock designed for versatile performance across both street and trail environments. Utilizing Rancho's Cross Tuned technology, this shock features an exclusive Progressive Engagement Valving system that manages low-speed impacts to minimize ride harshness while maintaining firm control during aggressive maneuvers. The internal 150 PSI nitrogen gas charge effectively reduces aeration and oil foaming, preventing damping fade under heavy use.

• 16mm nitro-carburized piston rod provides a durable finish to resist scuffs and corrosion
• 35mm sintered iron piston increases structural integrity and motion control
• Twin-tube body with all-weather fluid maintains performance from -40°F to 248°F
• Polyurethane rebound bumper and rubber bushings help isolate road noise and vibrations
• Double-welded loops at high-stress points for maximum off-road durability
• Includes a black polyvinyl protective boot to safeguard the self-lubricating seal and rod
• Manufacturer Part Number: RS55397
• Backed by Rancho’s Limited Lifetime Warranty

Fits 2004-2015 Nissan Titan (LE, S, SE, SL, SV, XE).

The Rancho RS5000X series is engineered to deliver improved handling and ride control for your Nissan Titan, whether on the highway or off-road. Utilizing Cross Tuned technology, this twin-tube shock absorber features a unique rebound valving system and an advanced compression phase that manages impacts and maintains vehicle stability without disc flutter.

Built for durability in extreme environments, the RS55395 shock is nitrogen gas-pressurized to 150 PSI to minimize aeration and reduce damping performance fade. The assembly features a heavy-duty 16mm nitro-carburized piston rod for superior corrosion resistance and a 35mm sintered iron piston for structural integrity during high-stress use.

• Manufacturer Part Number: RS55395
• Series: RS5000X Twin-Tube
• Piston Rod: 16mm nitro-carburized rod to resist scuffs and corrosion
• Piston: 35mm sintered iron with fluon-banding for enhanced responsiveness
• Gas Charge: Nitrogen pressurized to 150 PSI to reduce foaming and fade
• Temperature Rating: Engineered to withstand internal temperatures from -40°F to 248°F
• Construction: Double-welded loops at stress areas and polyvinyl protective boot included
• Ride Quality: Polyurethane rebound bumper and rubber bushings to absorb harsh road vibrations

Fits select 1998-2004 Nissan Pathfinder and 1999-2003 Infiniti QX4.

The Rancho RS5000X RS55391 rear shock absorber is engineered for drivers who demand consistent control and ride quality on and off the road. Utilizing Cross Tuned technology, this shock features a unique progressive engagement valving system that reduces initial impacts at low speeds while maintaining firm control during high-demand maneuvers. The twin-tube design is pressurized with nitrogen gas to 150 PSI to minimize oil aeration and damping fade.

• Durable Construction: Features a 16mm nitro-carburized piston rod for superior scuff and corrosion resistance and a 35mm sintered iron piston for structural integrity.
• Advanced Valving: Progressive Engagement Valving (PEV) and a custom-tuned Compression Control Valve regulate fluid transfer to absorb impacts without disc flutter.
• All-Weather Performance: Filled with all-weather fluid capable of withstanding internal temperatures from -40 to 248°F, ensuring reliable operation in extreme conditions.
• Smooth Operation: Equipped with a fluon-banded piston for better responsiveness, plus a polyurethane rebound bumper and rubber bushings to absorb harsh road vibrations.
• Heavy-Duty Design: Includes double-welded loops at stress areas and a protective polyvinyl boot to shield the seal and rod from debris.

Specifications:

• Series: RS5000X
• Position: Rear
• Gas Pressurized: Yes (150 PSI Nitrogen)
• Piston Diameter: 35mm
• Rod Diameter: 16mm
• Body Type: Twin-Tube
• Manufacturer Part Number: RS55391

Vehicle Fitment:

Fits select 2004-2009 Dodge Durango and Chrysler Aspen models.

The Rancho RS5000X (part number RS55388) is a nitrogen gas-pressurized shock absorber engineered to deliver refined ride quality on and off-road. Utilizing Rancho's exclusive Cross Tuned technology, this twin-tube shock features a progressive engagement valving system that reduces initial impact harshness at low speeds while maintaining firm control during high-speed maneuvers. The large-bore body is filled with all-weather fluid to ensure consistent damping performance in internal temperatures ranging from -40 to 248°F.

• 16mm nitro-carburized piston rod for maximum resistance against scuffs and corrosion
• 35mm sintered iron piston delivers enhanced structural integrity and motion control
• Nitrogen gas pressurized to 150 PSI to minimize aeration and reduce damping fade
• Double-welded loops at high-stress areas for long-term durability
• Polyurethane rebound bumper and rubber bushings help isolate road vibrations
• Low-friction, self-lubricating seal retains gas and oil for smoother compression cycles
• Includes a durable polyvinyl protective boot to shield the rod and oil seal from debris
• Manufacturer Part Number: RS55388

Fits 2000-2005 Ford Excursion Eddie Bauer, Limited, XLS, and XLT.

The Rancho RS5000X (RS55385) is a heavy-duty twin-tube gas-pressurized shock designed to improve stability and ride quality on full-size SUVs. Featuring Rancho’s exclusive Cross Tuned technology, this shock uses a unique rebound valving system and an advanced compression phase to provide better handling both on-road and off-road. The internal 150 PSI nitrogen gas charge minimizes the air-to-oil mixture, effectively reducing damping fade and foaming during continuous use.

• Precision Valving: Progressive Engagement Valving is custom-tuned for the Ford Excursion to reduce harshness at low speeds while maintaining firm control during high-impact events.
• Durable Construction: Equipped with a 16mm nitro-carburized piston rod to resist scuffs and corrosion, plus a 35mm sintered iron piston for long-term structural integrity.
• Built for Extremes: Large twin-tube body with all-weather fluid allows for consistent operation in temperatures ranging from -40°F to 248°F.
• Installation Ready: Includes double-welded loops at stress points for maximum strength, polyurethane rebound bumpers, and a protective polyvinyl boot to shield the rod and seal from debris.
• Part Number: RS55385

Fits 2011-2018 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD (all submodels).

The Rancho RS5000X (RS55383) is a gas-pressurized twin-tube shock absorber engineered to improve the handling and ride quality of heavy-duty pickups. Featuring Rancho's exclusive Progressive Engagement Valving (PEV), this shock is custom-tuned for each application to reduce initial impacts at low speeds and minimize ride harshness. Its Cross Tuned technology utilizes an advanced rebound and compression valving system to provide consistent control both on-road and in demanding off-road conditions.

• Durable Construction: Features a 16mm nitro-carburized piston rod for superior scuff and corrosion resistance, plus double-welded loops at high-stress points.
• Advanced Internals: Includes a 35mm sintered iron piston for enhanced structural integrity and a low-friction, self-lubricating seal to maintain gas and oil retention.
• Thermal Performance: Large twin-tube body filled with all-weather fluid allows for cooler operation and reliable performance in internal temperatures ranging from -40 to 248°F.
• Fade Reduction: Nitrogen gas pressurized to 150 PSI minimizes air-to-oil mixture (aeration) to prevent damping fade and foaming.
• Hardware Included: Comes with polyurethane rebound bumpers, rubber bushings to absorb vibration, and a polyvinyl protective boot.
• Manufacturer Part Number: RS55383

Fits select 2011-2018 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD.

The Rancho RS5000X shock absorber (RS55382) utilizes an innovative valving system and advanced compression phase to improve handling both on and off-road. Engineered with a large twin-tube body and filled with all-weather fluid, this shock is designed to withstand internal temperatures ranging from -40 to 248°F, ensuring consistent performance in extreme environments. The nitrogen gas charge is pressurized to 150 PSI to minimize air-to-oil mixture, effectively reducing damping fade and foaming during heavy use.

Built for durability, the RS5000X features a 16mm nitro-carburized piston rod to resist scuffs and corrosion, complemented by double-welded loops at critical stress areas. The Progressive Engagement Valving is custom-tuned for each vehicle application to reduce initial impacts at low speeds, while the fluon-banded piston and polyurethane rebound bumper help absorb ride harshness.

• Precision Valving: Cross Tuned technology with exclusive rebound valving and Progressive Engagement Valving for minimized rough ride.
• Rugged Construction: 35mm sintered iron piston for structural integrity and a 16mm nitro-carburized rod.
• Protection: Includes a polyvinyl protective boot to shield the rod and self-lubricating seal from debris.
• System Specs: 150 PSI nitrogen gas pressure and all-weather fluid rated for -40 to 248°F.

• Manufacturer Part Number: RS55382
• Piston Diameter: 35mm
• Rod Diameter: 16mm
• Gas Type: Nitrogen (150 PSI)
• Body Style: Twin-tube

Fits select 2011-2019 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD models. The Rancho RS5000X series gas shock absorber (RS55381) features a unique Cross Tuned technology that utilizes a progressive engagement valving system. This design allows for a smooth, controlled ride during normal conditions while providing firm, precise handling when the road gets rough. Built to withstand extreme thermal changes from -40 to 248°F, the large twin-tube body is filled with all-weather fluid to maintain performance in any environment.

• Precision Valving: Progressive Engagement Valving reduces initial impact harshness at low speeds while the Compression Control Valve regulates fluid transfer to prevent disc flutter.
• Heavy-Duty Construction: Features a 16mm nitro-carburized piston rod to resist scuffs and corrosion, and a 35mm sintered iron piston for structural integrity.
• Gas Pressurized: Nitrogen gas is pressurized to 150 PSI to minimize air-to-oil foaming and prevent damping fade under load.
• Durability: Equipped with double-welded loops at high-stress points, a low-friction self-lubricating seal, and a protective polyvinyl boot.
• Specs: Twin-tube design, fluon-banded piston, polyurethane rebound bumper, and rubber bushings for enhanced vibration damping.
• Part Number: RS55381

Fits select 2011-2019 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD.

The Rancho RS5000X (RS55380) is a nitrogen gas-pressurized shock absorber designed to improve the ride quality and handling of heavy-duty pickups. Featuring Rancho's exclusive Cross Tuned technology and Progressive Engagement Valving (PEV), this shock is custom-tuned to manage the high-inertia loads of 3/4-ton and 1-ton trucks, reducing harsh initial impacts and preventing performance fade during towing or off-road use.

• Cross Tuned Technology: Advanced rebound and compression valving system provides superior control and stability on and off-road.
• Progressive Engagement Valving: Minimizes rough ride by reducing initial impact harshness at low speeds.
• Robust Construction: Features a 16mm nitro-carburized piston rod for scuff resistance and a 35mm sintered iron piston for structural integrity.
• Thermal Stability: Large twin-tube body filled with all-weather fluid allows for cooler operation, maintaining performance in temperatures from -40 to 248°F.
• Durability: Includes double-welded loops at high-stress areas and a protective polyvinyl boot to safeguard the self-lubricating seal.

Specifications:

• Manufacturer Part Number: RS55380
• Internal Pressure: 150 PSI Nitrogen gas
• Piston Rod Diameter: 16mm
• Piston Diameter: 35mm
• Design: Twin-tube gas pressurized

Fits select 2011-2025 Chevrolet Silverado and GMC Sierra 1500, 2500 HD, and 3500 HD models.

The Rancho RS5000X RS55379 gas shock absorber is engineered for drivers who demand consistent performance both on and off-road. Utilizing Rancho's exclusive Cross Tuned technology, this twin-tube shock features a unique Progressive Engagement Valving system. This system reduces initial impact harshness at low speeds while maintaining the firm control required for heavy-duty hauling and technical terrain.

• Precision Engineering: Features a 35mm sintered iron piston and an application-specific piston area to deliver heightened control of shock motion.
• Durable Construction: Built with a 16mm nitro-carburized piston rod for scuff and corrosion resistance, plus double-welded loops at high-stress points.
• Temperature Resistance: Large twin-tube body is filled with all-weather fluid designed to withstand internal temperatures ranging from -40 to 248°F.
• Fade Reduction: Pressurized with nitrogen gas to 150 PSI to minimize air-to-oil foaming and ensure consistent damping performance under heavy use.
• Complete Protection: Includes a durable polyvinyl protective boot to shield the rod and seal, along with polyurethane rebound bumpers and rubber bushings to absorb ride harshness.
• Specifications: Twin-tube gas pressurized design; 16mm rod diameter; 35mm piston diameter; 150 PSI nitrogen charge; MPN: RS55379.

Fits 2011-2025 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD across all trim levels including High Country, Denali, AT4, and WT.

The Rancho RS5000X shock absorber (MPN: RS55378) features a twin-tube design engineered to improve handling and control on heavy-duty pickups. Utilizing Rancho's Progressive Engagement Valving, this shock reduces initial impact harshness at low speeds while maintaining firm control during aggressive off-road driving or towing. The nitrogen gas charge is pressurized to 150 PSI to minimize oil aeration and prevent damping fade under heavy cycling.

Built for durability in extreme environments, the RS5000X includes a 16mm nitro-carburized piston rod for superior corrosion resistance and double-welded loops at critical stress points. The large-bore body is filled with all-weather fluid, allowing the shock to operate consistently in temperatures ranging from -40 to 248°F.

• 16mm nitro-carburized piston rod resists scuffs and corrosion
• 35mm sintered iron piston for increased structural integrity
• 150 PSI nitrogen gas pressurized to reduce foaming and shock fade
• Cross Tuned technology for optimized rebound and compression valving
• Polyurethane rebound bumper and rubber bushings for improved ride quality
• Includes polyvinyl protective boot to shield the rod and oil seal
• Manufacturer Part Number: RS55378

Fits 2011-2025 Chevrolet Silverado and GMC Sierra 2500 HD/3500 HD trucks.

Improve the ride quality and handling of your heavy-duty truck with the Rancho RS5000X Series shock absorber (RS55377). Designed for both on-road comfort and demanding off-road use, this twin-tube gas-pressurized shock features Rancho’s exclusive Cross Tuned technology. This system utilizes a unique rebound valving system and an advanced compression phase to deliver precise control, whether you are daily driving or hauling heavy payloads.

• Advanced Valving: Progressive Engagement Valving (PEV) is custom-tuned to reduce initial impact at low speeds while maintaining firm control during high-speed compression.
• Durable Construction: Built with a 16mm nitro-carburized piston rod for scuff and corrosion resistance, plus a 35mm sintered iron piston for enhanced structural integrity.
• Fade Resistance: Pressurized with 150 PSI nitrogen gas to minimize air-to-oil foaming, ensuring consistent damping performance even during heavy-duty cycles.
• All-Weather Reliability: A large twin-tube body filled with all-weather fluid allows for cooler operation and reliable performance in temperatures ranging from -40 to 248°F.
• Reinforced Design: Features double-welded loops at stress areas, a fluon-banded piston for responsiveness, and a protective polyvinyl boot to shield the rod.

This shock absorber includes polyurethane rebound bumpers and rubber bushings to further isolate road harshness and vibrations. Manufacturer Part Number: RS55377.

Fits select 1995-2011 Ford Explorer, Explorer Sport Trac, Ranger, Mazda B-Series, and Mercury Mountaineer. This Rancho RS5000X (MPN: RS55374) front shock absorber is engineered to bridge the gap between on-road comfort and off-road capability. Utilizing Cross Tuned technology with an exclusive Progressive Engagement Valving system, this twin-tube gas shock reduces initial impact harshness at low speeds while maintaining firm control during high-speed maneuvers or off-road cycles.

• Robust Construction: Features a 16mm nitro-carburized piston rod for superior scuff and corrosion resistance, paired with double-welded loops at high-stress points.
• Advanced Internals: A 35mm sintered iron piston and fluon-banded seal provide enhanced structural integrity and consistent responsiveness.
• Thermal Management: The large twin-tube body is filled with all-weather fluid designed to withstand internal temperatures from -40°F to 248°F.
• Consistent Performance: Pressurized with 150 PSI nitrogen gas to minimize air-to-oil foaming and prevent damping fade under heavy use.
• Installation Ready: Includes a polyvinyl protective boot and rubber bushings to absorb ride harshness and protect the rod from debris.

Fits select 1997-2004 Ford Expedition, F-150, F-150 Heritage, and F-250 models. This Rancho RS5000X gas-pressurized shock absorber is engineered to improve vehicle handling and control both on and off-road.

Featuring Rancho’s exclusive Cross Tuned technology, this twin-tube shock uses Progressive Engagement Valving (PEV) to reduce initial impacts at low speeds while maintaining control during aggressive maneuvers. The nitrogen gas charge (pressurized to 150 PSI) minimizes the air-to-oil mixture to prevent damping fade and foaming during heavy use. Built for long-term durability, it features a nitro-carburized piston rod and a 35mm sintered iron piston for superior structural integrity.

• 16mm nitro-carburized piston rod resists scuffs and corrosion
• 35mm sintered iron piston provides enhanced durability
• Nitrogen gas pressurized to 150 PSI to minimize performance fade
• All-weather fluid withstands internal temperatures from -40°F to 248°F
• Polyurethane rebound bumper and rubber bushings help absorb ride harshness
• Low-friction, self-lubricating seal retains gas and oil for quicker rebound
• Includes a polyvinyl protective boot and double-welded loops at stress areas
• Manufacturer Part Number: RS55372

Fits select 1999-2007 Chevrolet Silverado, Avalanche, Suburban, Tahoe 1500, and GMC Sierra, Yukon, Yukon XL 1500 models.

The Rancho RS5000X series shock absorber features an advanced Cross Tuned technology system, combining a unique rebound valving system with an enhanced compression phase. Designed to improve handling and control both on and off-road, this nitrogen gas-pressurized shock uses a 150 PSI charge to minimize air-to-oil mixture, effectively reducing damping performance fade and foaming under heavy use.

• Durable Construction: Features a 16mm nitro-carburized piston rod to resist scuffs and corrosion, plus double-welded loops at high-stress areas.
• Precision Valving: Progressive Engagement Valving (PEV) is custom-tuned to reduce initial impacts at low speeds while maintaining control during aggressive motion.
• Advanced Piston Design: A 35mm sintered iron piston with a fluon-banded seal provides enhanced structural integrity and consistent responsiveness to changing road conditions.
• Temperature Resistance: The large twin-tube body is filled with all-weather fluid capable of withstanding internal temperatures from -40°F to 248°F.
• Included Hardware: Comes with a polyvinyl protective boot, polyurethane rebound bumper, and durable rubber bushings to absorb ride harshness.
• MPN: RS55371

Fits select 1999-2019 Chevrolet Silverado/Suburban 2500/3500, GMC Sierra/Yukon XL 2500/3500, Avalanche 2500, and Hummer H2.

The Rancho RS5000X series (part number RS55370) features Cross Tuned technology to deliver a precise balance of off-road control and on-road comfort. This twin-tube shock utilizes a unique valving system that transitions through different compression phases, utilizing Progressive Engagement Valving to reduce initial impact harshness at low speeds while maintaining firm control during high-speed maneuvers or when navigating rough terrain.

• Internal Construction: Nitrogen gas pressurized to 150 PSI to minimize aeration, foaming, and damping performance fade during heavy use.
• Durability Features: 16mm nitro-carburized piston rod for superior corrosion resistance and a 35mm sintered iron piston for structural integrity.
• Temperature Stability: All-weather fluid allows for consistent operation in extreme temperatures ranging from -40 to 248°F.
• Ride Comfort: Includes a polyurethane rebound bumper and rubber bushings to isolate road noise and vibrations.
• Protection: Equipped with a polyvinyl protective boot to shield the rod and oil seal from debris.
• Warranty: Covered by Rancho’s Limited Lifetime Warranty.

Fits select 2009-2024 Dodge Ram 1500 and Ram 1500 Classic models.

The Rancho RS5000X series redefines twin-tube shock performance for your Ram truck. Engineered with exclusive Cross Tuned technology and Progressive Engagement Valving (PEV), these shocks are designed to reduce initial impact at low speeds while maintaining firm control during high-speed or off-road maneuvers. The nitrogen gas-pressurized design (150 PSI) significantly reduces oil aeration and shock fade, ensuring consistent damping performance under heavy loads or extreme duty.

Built for long-term durability in harsh environments, the RS55367 features a nitro-carburized piston rod and a 35mm sintered iron piston for superior structural integrity. The all-weather fluid allows for consistent operation in temperatures ranging from -40°F to 248°F, while the included polyvinyl boot protects the seal and rod from debris.

• MPN: RS55367
• Piston Rod: 16mm nitro-carburized for scuff and corrosion resistance
• Piston: 35mm sintered iron for enhanced strength
• Gas Charge: Nitrogen pressurized to 150 PSI to minimize foaming and fade
• Valving: Progressive Engagement Valving for vehicle-specific ride tuning
• Construction: Double-welded loops at stress points and a self-lubricating seal
• Included: Shock absorber, rubber bushings, and red protective boot

Fits 2007-2018 Jeep Wrangler and Wrangler JK models including Rubicon, Sahara, Sport, and Unlimited trims.

The Rancho RS5000X Series RS55332 rear shock absorber is engineered to deliver consistent damping performance for both daily driving and off-road excursions. Featuring exclusive Progressive Engagement Valving, this shock is custom-tuned to reduce harshness at low speeds while maintaining firm control during high-speed impacts. The twin-tube body is pressurized with 150 PSI of nitrogen gas to minimize air-to-oil foaming, effectively reducing performance fade during heavy cycling.

• Precision Engineering: Cross Tuned technology with specialized rebound and compression valving improves overall vehicle handling and stability.
• Durable Construction: Built with a 16mm nitro-carburized piston rod for corrosion resistance and a 35mm sintered iron piston for structural integrity.
• Extreme Temperature Resilience: All-weather fluid allows the shock to operate reliably in internal temperatures ranging from -40 to 248°F.
• Protection & Longevity: Includes a polyvinyl protective boot and double-welded loops at stress areas; fluon-banded piston enhances responsiveness and longevity.
• Included Hardware: Polyurethane rebound bumpers and rubber bushings are provided to help absorb road noise and vibration.
• Manufacturer Part Number: RS55332

Fits 2007-2018 Jeep Wrangler and Wrangler JK (Rubicon, Sahara, Sport, X, and Anniversary models).

The Rancho RS5000X series is engineered to provide a sophisticated ride on-road and durable performance on the trail. This twin-tube shock features Rancho's exclusive Progressive Engagement Valving, specifically tuned for the Jeep JK to reduce initial impact harshness at low speeds and minimize vibration on rough terrain. With Cross Tuned technology and a high-capacity body, the RS55331 ensures consistent damping and control regardless of the conditions.

• Internal Construction: 35mm sintered iron piston with 16mm nitro-carburized piston rod for superior scuff and corrosion resistance.
• Advanced Valving: Cross Tuned technology with exclusive rebound valving and progressive engagement systems for improved handling.
• Performance Fluid: Filled with all-weather fluid capable of operating between -40 to 248°F.
• Pressurized Charge: 150 PSI nitrogen gas pressurized to minimize aeration and damping fade.
• Durability: Double-welded loops at stress areas, a low-friction self-lubricating seal, and a polyvinyl protective boot.
• Mounting: Includes polyurethane rebound bumper and rubber bushings for improved ride harshness absorption.
• Manufacturer Part Number: RS55331