The Rancho New RS5000X Suspension Shock Absorber (part number RS55379) is a direct-fit replacement for 2011-2025 Chevrolet and GMC vehicles with engines. Rancho RS5000X RS55379 Suspension Shock Absorber for Chevrolet Silverado 2500 HD
Features:
- IMPROVED HANDLING AND PERFORMANCE -- Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road
- MINIMIZES ROUGH RIDE -- Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride
- STRONG AND DURABLE -- Features a 16mm nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, 35mm sintered iron piston for enhanced structural integrity and polyvinyl protective boot
- HANDLES EXTREME TEMPERATURE CHANGES -- Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248 degF
- SMOOTH PERFORMANCE -- Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride
- REDUCES FADE -- Nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming
- MAINTAINS VEHICLE CONTROL -- Compression Control Valve is custom-tuned for each vehicle to regulate fluid transfer to absorb impacts without disc flutter and help maintain shock motion control
- BUILT TO LAST -- Low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression while the application-specific piston delivers heightened control of shock motion due to the expanded piston area
- BUY WITH CONFIDENCE -- Comes with Rancho's Limited Lifetime Warranty
Specifications:
| Product Grade | Performance |
| Lower Mount Type | Loop Bushing and Sleeve Mount - 9/16" Sleeve ID X 1.5/8" Sleeve OAL |
| Lower Mount Code | LS47 |
| Upper Mount Type | Loop Bushing and Sleeve Mount - 9/16" Sleeve ID X 1.5/8" Sleeve OAL |
| Upper Mount Code | LS47 |
| Dust Shield Color | Red |
| Shock Absorber Bore Size | 1.3779527559055118 |
| Adjustable Damping | No |
| Air Adjustable | No |
| Air Ride Suspension | No |
| Coil Over Springs Included | No |
| Bearing Plate Included | No |
| Spring Included | No |
| Spring Isolators Included | No |
Fits: 2011-2025 Chevrolet and GMC models including Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, Sierra 1500, Sierra 2500 HD, Sierra 3500 HD. Confirm your year, make, model, and engine before ordering.
Interchanges With: General Motors 22990471, ACDelco 560641, General Motors 22990474, General Motors 23315261, ACDelco 560869, Strut-Mate 911303, General Motors 19366152, NAPA Shocks 76811 and 32 more
