Description
Advanced Suspension Solution. The Rancho RS5000X Front Shock for 1 to 2.50-Inch Lift is engineered to enhance your vehicle’s handling and performance both on and off road. This shock absorber uses a specialized valving system and refined compression technology to improve ride comfort and vehicle control while effectively managing harsh road impacts.
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Construction and Appearance. Built with a robust 16mm nitro-carburized piston rod to resist wear and corrosion, this shock includes a 35mm sintered iron piston and a twin-tube body filled with all-weather fluid to ensure consistent performance under extreme temperatures ranging from -40 to 248°F. The exterior features a painted white finish with double-welded loops at high-stress areas and a protective polyvinyl boot for added durability.
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Installation. Installation of this shock is straightforward and designed for ease of use without requiring drilling or modification. It is compatible with vehicles equipped with a 1.0 to 2.5-inch front lift, ensuring a precise fit and reliable operation.
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Warranty. Backed by a limited lifetime warranty that provides assurance of long-term quality and reliability.
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Application. Specifically designed to fit the 2011 through 2026 Silverado 2500 HD models that have a front raised height of 1.0 to 2.5 inches. It is not compatible with aftermarket shock spacers or relocation brackets.
Rancho RS55378
CA Residents: WARNING: Cancer and Reproductive Harm
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- Featuring a Unique, Exclusive Valving System and Advanced Compression Functionality
- Delivers Improved Overall On- and Off-Road Handling and Performance
- Cross Tuned Technology with Exclusive Rebound Valving System and Advanced Compression Phase
- Exclusive Progressive Engagement Valving Custom-Tuned for Each Vehicle to Reduce Initial Impacts at Low Speeds and Minimize Rough Ride
- 16mm Nitro-Carburized Piston Rod to Resist Scuffs and Corrosion
- Double-Welded Loops at Stress Areas for Enhanced Durability
- 35mm Sintered Iron Piston for Enhanced Structural Integrity
- Polyvinyl Protective Boot
- Large Twin-Tube Body Filled with All-Weather Fluid for Cooler Operation and Increased Vehicle Control
- Withstands Internal Temperatures from -40 to 248 Degrees Fahrenheit
- Polyurethane Rebound Bumper and Rubber Bushings to Absorb Ride Harshness
- Fluon-Banded Piston Enhances Responsiveness to Changing Road Conditions
- Nitrogen Gas Pressurized to 150 PSI to Minimize Air-to-Oil Mixture and Reduce Damping Performance Fade and Foaming
- Compression Control Valve Custom-Tuned for Each Vehicle to Absorb Impacts Without Disc Flutter and Maintain Shock Motion Control
- Low-Friction, Self-Lubricating Seal Retains Gas and Oil for Quicker Rebound and Smoother Compression
- Application-Specific Piston Provides Heightened Control of Shock Motion Due to Expanded Piston Area
- Comes with a Limited Lifetime Warranty
- Fits 11-26 Silverado 2500 HD with Front Raised Height 1.0 to 2.5 Inches. Not for Use with Aftermarket Shock Spacers or Relocation Brackets.
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| Brand | Rancho |
| Shock Type | Non-Adjustable |
| Shock Lift Height | 1 to 2.50-Inch Lift |






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