Rancho RS55023 RS5000X Rear Shock for 2015-22 Chevy/GMC Colorado/Canyon

Vehicle Fitment

• 2015-2022 Chevrolet Colorado (All Trims, RWD & 4WD)
• 2015-2022 GMC Canyon (All Trims, RWD & 4WD)
• Excludes ZR2/Canyon AT4X off-road specific models if mount differs

Features

• Rancho RS5000X™ series rear shock absorber
• Progressive Engagement valving for controlled ride response
• Advanced compression phase and exclusive rebound valving
• Gas-charged design for consistent damping performance
• 16 mm nitro-carburized rod resists corrosion & wear
• Red polyvinyl protective boot shields rod and seals
• Large 2.25" twin-tube body for increased fluid capacity
• Limited lifetime Rancho warranty included

Specifications

• Part Number: RS55023
• Brand: Rancho
• Series: RS5000X™
• Position: Rear Shock Absorber
• Design: Gas-charged twin-tube
• Compressed Length: 14.97 in
• Extended Length: 22.58 in
• Travel Length: 7.59 in
• Upper/Lower Mount: Eyelet to Eyelet (loop style)
• Boot Included: Yes (protective)

Included Components

• 1x Rancho RS5000X™ Rear Shock Absorber (RS55023)
• 1x Protective Boot

Product Description

The **Rancho RS55023** rear shock is part of the RS5000X™ series engineered to improve suspension performance and ride quality on select Chevrolet Colorado and GMC Canyon midsize trucks from 2015 through 2022. Featuring Rancho's proprietary Progressive Engagement valving and advanced compression phase technology, this shock absorber helps deliver smoother ride dynamics, better control over varying road conditions, and improved handling both on and off the pavement.

Built with a robust gas-charged twin-tube design and a 16 mm nitro-carburized piston rod, the RS55023 resists wear and corrosion while maintaining consistent damping performance. The enlarged 2.25" body allows for greater fluid capacity, helping reduce heat buildup and performance fade over long drives or rough terrain. Installation is a direct replacement for rear shock mounts, and the included red protective boot shields critical components from debris. Ideal for stock and lightly-modified Colorado and Canyon trucks (excluding some off-road specific versions like ZR2 with unique mount requirements), this shock delivers balanced comfort and control with a Rancho limited lifetime warranty.