Rancho RS55770 Suspension Strut - Front

Rancho RS5000X Front Strut for Colorado and Canyon

The Rancho RS5000X RS55770 is a front suspension strut built for select Chevrolet Colorado, GMC Canyon, and Isuzu i-Series applications. It uses Rancho’s RS5000X valving approach with advanced compression control to improve handling response on pavement and stability on rougher roads.

Key Features

• Rancho RS5000X front suspension strut, part number RS55770
• Exclusive valving system with advanced compression functionality
• Front position replacement for 0" lift applications on listed vehicles
• Dust shield included for added protection
• Extended bumper stop included
• Loop bushing upper and lower mounts with 5/8" bushing ID and 1.5/16" bushing OAL
• Compressed length: 11.19 in; extended length: 15.96 in; travel length: 4.77 in

Product Details

Rancho RS5000X struts are part of the RS5000X line, which focuses on controlled damping for mixed on-road and off-road use. This RS55770 front strut uses a 2-inch reserve tube diameter and SS3 body type, with a dust shield and extended bumper stop included to support durability in demanding suspension environments. For shoppers comparing suspension struts for a 2004-2012 Chevrolet Colorado front suspension strut or a 2004-2012 GMC Canyon front suspension strut, this part provides a direct-fit option for the listed 0" lift applications. It also cross-references KYB 341374 for the same application.

What It Helps Address

• Excessive front-end bounce over uneven pavement
• Loose or unsettled steering feel during daily driving
• Reduced control after suspension wear
• Harsh response from worn front struts
• Inconsistent handling on mixed road surfaces

Installation Notes

Install RS55770 in the front position only on the listed applications. Verify vehicle year, make, model, and suspension configuration before installation, especially on 2004-2012 Chevrolet Colorado, 2004-2012 GMC Canyon, and select Isuzu i-280, i-290, and i-370 front applications. Confirm that the vehicle is set up for 0" lift where noted in the fitment data. Always inspect related suspension components, mounts, and bushings during strut replacement.

Quality Assurance

Rancho RS5000X struts are engineered around a valving system and compression control strategy intended to deliver consistent damping performance across on-road and off-road conditions. RS55770 is built to match the listed fitment and mounting dimensions for the specified front suspension applications.