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Rancho RS55100 Shock Absorber - Rear
Overview of Rancho RS5000X Suspension Shock Absorber
The Rancho RS55100 suspension shock absorber is engineered for Chevrolet and GMC trucks, specifically designed for the Sierra 1500, Sierra 1500 Limited, Silverado 1500, and Silverado 1500 LTD models. This shock absorber offers reliable performance with features tailored to enhance ride quality and durability.
- Extended length of 25.21 inches and compressed length of 15.69 inches
- Includes dust shield for added protection
- Extended bumper stop for improved suspension travel control
- Reserve tube diameter of 2.251 inches for enhanced fluid capacity
- Upper and lower mounting with loop bushing and sleeve mount (9/16" sleeve ID x 1.5/8" sleeve OAL)
- Travel length of 9.53 inches
Details on RS5000X Product Line
The RS5000X line from Rancho is designed to provide dependable suspension solutions for light trucks and SUVs. This product line focuses on delivering consistent damping performance with features such as extended bumper stops and dust shields to protect internal components. The RS55100 shock absorber is part of this line, offering specifications that match the demands of Chevrolet and GMC full-size pickups.
Technical Description and Features
The Rancho RS55100 shock absorber features an extended length of 25.21 inches and a compressed length of 15.69 inches, providing a travel length of 9.53 inches. It includes a dust shield to protect the shock from dirt and debris, which helps maintain performance over time. The extended bumper stop enhances suspension travel control, reducing the risk of damage during heavy use. Both upper and lower mounts use loop bushings with sleeve mounts sized at 9/16" sleeve ID by 1.5/8" sleeve overall length, ensuring secure and stable installation. The reserve tube diameter of 2.251 inches allows for increased fluid volume, contributing to consistent damping under various driving conditions.
Compatible Vehicles and Applications
- Chevrolet Sierra 1500
- Chevrolet Sierra 1500 Limited
- Chevrolet Silverado 1500
- Chevrolet Silverado 1500 LTD
- GMC Sierra 1500
- GMC Sierra 1500 Limited
This shock absorber is designed to address common suspension issues such as excessive bouncing, poor handling, and reduced ride comfort in these specific truck models.
Common Suspension Issues Addressed
- Reduced shock absorption leading to a rough ride
- Excessive suspension travel causing bottoming out
- Wear and tear on mounting bushings affecting stability
- Contamination damage due to lack of dust protection
- Inconsistent damping performance under load
Installation Notes and Tips
Installation of the Rancho RS55100 shock absorber requires proper alignment of the loop bushing and sleeve mounts on both upper and lower ends. Ensure the mounting sleeves (9/16" ID x 1.5/8" OAL) are correctly positioned to avoid premature wear. The included dust shield should be inspected for proper placement to maintain protection. It is recommended to replace shocks in pairs to maintain balanced suspension performance on Chevrolet and GMC Sierra and Silverado 1500 models.
Quality Assurance and Warranty
Rancho manufactures the RS55100 shock absorber to meet OEM standards for durability and performance. The RS5000X product line is known for consistent quality control and reliable construction. While specific warranty details are not provided here, Rancho typically offers limited warranties on their suspension components. Buyers should consult official Rancho documentation or authorized dealers for exact warranty terms.
| Brand | Rancho |
| Part Number | RS55100 |
| Position | RS5000X, Rear |
| Compressed Bumper Stop | No |
| Compressed Length | 15.69 |
| Dust Shield Included | Yes |
| Extended Bumper Stop | Yes |
| Extended Hydraulic Lockout | No |
| Extended Length | 25.21 |
| Lower Mounting Code | LS47 |
| Lower Mounting Description | Loop Bushing & Sleeve Mount - 9/16" Sleeve ID X 1.5/8" Sleeve OAL |
| Parts Pack | None |
| Reserve Tube Diameter | 2.251 |
| Travel Length | 9.53 |
| Upper Mounting Code | LS47 |
| Upper Mounting Description | Loop Bushing & Sleeve Mount - 9/16" Sleeve ID X 1.5/8" Sleeve OAL |
This part fits 28 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | Chevrolet | Silverado 1500 | High Country | Rear | RS5000X | ||||
| 2025 | GMC | Sierra 1500 | Pro | Extended Cab Pickup | Rear | RS5000X | |||
| 2024 | Chevrolet | Silverado 1500 | High Country | Rear | RS5000X | ||||
| 2024 | GMC | Sierra 1500 | Pro | Extended Cab Pickup | Rear | RS5000X | |||
| 2023 | Chevrolet | Silverado 1500 | High Country | Rear | RS5000X | ||||
| 2023 | GMC | Sierra 1500 | SLT | Rear | RS5000X | ||||
| 2022 | Chevrolet | Silverado 1500 | High Country | Rear | RS5000X | ||||
| 2022 | Chevrolet | Silverado 1500 LTD | LT | 5.3L | V8 | Rear | RS5000X | ||
| 2022 | GMC | Sierra 1500 | SLT | Rear | RS5000X | ||||
| 2022 | GMC | Sierra 1500 Limited | SLE | 5.3L | V8 | Rear | RS5000X | ||
| 2021 | Chevrolet | Silverado 1500 | Rear | Rear Shock Absorber for 0 inch raised height.; RS5000X | |||||
| 2021 | GMC | Sierra 1500 | Base | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2021 | GMC | Sierra 1500 | SLT | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2021 | GMC | Sierra 1500 | SLE | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2021 | GMC | Sierra 1500 | AT4 | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2021 | GMC | Sierra 1500 | Elevation | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2020 | Chevrolet | Silverado 1500 | Rear | Rear Shock Absorber for 0 inch raised height.; RS5000X | |||||
| 2020 | GMC | Sierra 1500 | Base | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2020 | GMC | Sierra 1500 | SLT | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2020 | GMC | Sierra 1500 | SLE | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2020 | GMC | Sierra 1500 | AT4 | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2020 | GMC | Sierra 1500 | Elevation | Rear | Does not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X | ||||
| 2019 | Chevrolet | Silverado 1500 | 4WD | Rear | New Body Style; with Rear Raised Height 0 (in); RS5000X | ||||
| 2019 | GMC | Sierra 1500 | Base | 4WD | Rear | New Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X | |||
| 2019 | GMC | Sierra 1500 | SLT | 4WD | Rear | New Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X | |||
| 2019 | GMC | Sierra 1500 | SLE | 4WD | Rear | New Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X | |||
| 2019 | GMC | Sierra 1500 | AT4 | 4WD | Rear | New Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X | |||
| 2019 | GMC | Sierra 1500 | Elevation | 4WD | Rear | New Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.