HomeSuspension > Shocks and StrutsRancho RS55100 Shock Absorber - Rear
Part #: RS55100

Rancho RS55100 Shock Absorber - Rear

RS5000X, Rear
⚙️ 28 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦RS5000X, Rear
🚗Fitment: Chevrolet and GMC, Silverado 1500 and Sierra 1500
🔄Easy Returns — Return within 60 days for a full refund
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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.

BrandRancho
Part NumberRS55100
PositionRS5000X, Rear
Compressed Bumper StopNo
Compressed Length15.69
Dust Shield IncludedYes
Extended Bumper StopYes
Extended Hydraulic LockoutNo
Extended Length25.21
Lower Mounting CodeLS47
Lower Mounting DescriptionLoop Bushing & Sleeve Mount - 9/16" Sleeve ID X 1.5/8" Sleeve OAL
Parts PackNone
Reserve Tube Diameter2.251
Travel Length9.53
Upper Mounting CodeLS47
Upper Mounting DescriptionLoop Bushing & Sleeve Mount - 9/16" Sleeve ID X 1.5/8" Sleeve OAL

This part fits 28 vehicles. Search below:

YearMakeModelSubmodelBody TypeDrive TypeLitersCylindersPositionNotes
2025ChevroletSilverado 1500High CountryRearRS5000X
2025GMCSierra 1500ProExtended Cab PickupRearRS5000X
2024ChevroletSilverado 1500High CountryRearRS5000X
2024GMCSierra 1500ProExtended Cab PickupRearRS5000X
2023ChevroletSilverado 1500High CountryRearRS5000X
2023GMCSierra 1500SLTRearRS5000X
2022ChevroletSilverado 1500High CountryRearRS5000X
2022ChevroletSilverado 1500 LTDLT5.3LV8RearRS5000X
2022GMCSierra 1500SLTRearRS5000X
2022GMCSierra 1500 LimitedSLE5.3LV8RearRS5000X
2021ChevroletSilverado 1500RearRear Shock Absorber for 0 inch raised height.; RS5000X
2021GMCSierra 1500BaseRearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2021GMCSierra 1500SLTRearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2021GMCSierra 1500SLERearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2021GMCSierra 1500AT4RearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2021GMCSierra 1500ElevationRearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2020ChevroletSilverado 1500RearRear Shock Absorber for 0 inch raised height.; RS5000X
2020GMCSierra 1500BaseRearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2020GMCSierra 1500SLTRearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2020GMCSierra 1500SLERearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2020GMCSierra 1500AT4RearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2020GMCSierra 1500ElevationRearDoes not fit vehicles with Electronic Adjustable Suspension; Suitable for vehicles with Rear Raised Height of 0 inches; RS5000X
2019ChevroletSilverado 15004WDRearNew Body Style; with Rear Raised Height 0 (in); RS5000X
2019GMCSierra 1500Base4WDRearNew Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X
2019GMCSierra 1500SLT4WDRearNew Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X
2019GMCSierra 1500SLE4WDRearNew Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X
2019GMCSierra 1500AT44WDRearNew Body Style; without Electronic Adjustable Suspension; Rear Raised Height 0"; RS5000X
2019GMCSierra 1500Elevation4WDRearNew 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:

84171398841714008417140284171408841714228417142884448057844480588445837884458380844583828451429484514295845262448454676084546762

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.