Rancho RS55817 Suspension Strut - Front

Rancho RS5000X Front Suspension Strut

The Rancho RS5000X front suspension strut is built for drivers who want more controlled handling on pavement and more stable response on rough roads. Part number RS55817 uses Rancho’s exclusive valving approach and advanced compression control to improve front-end performance on compatible Chevrolet Trailblazer, GMC Envoy, and related applications.

RS5000X Product Line Details

Rancho RS5000X struts are part of a performance-focused suspension line that emphasizes damping control for daily driving and off-road use. For front suspension service, RS55817 is engineered to deliver consistent response through compression and rebound movement while maintaining the correct installed dimensions for the listed vehicles.

Key Features

• Front suspension strut for select 2002-2009 GM and related SUV applications
• Rancho RS5000X valving for improved on-road and off-road handling balance
• Compressed length: 11.07 in.; extended length: 16.08 in.
• Travel length: 5.01 in. with a 2 in. reserve tube diameter
• Loop bushing upper and lower mounts with 5/8 in. bushing ID and 1.5/16 in. bushing OAL
• Extended bumper stop included; dust shield not included
• Body type B4 with 9.987 in. body length

Detailed Description

Rancho RS55817 is a front suspension strut for vehicles with 0 in. lift in the listed applications, including Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Isuzu Ascender, Buick Rainier, Chevrolet SSR, Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, and Oldsmobile Bravada. The RS5000X tuning is aimed at improving overall control by managing compression forces more effectively, which helps the front suspension respond more consistently over changing road surfaces. This part cross-references KYB 331043 for the same application.

What This Strut Helps Address

• Excessive front-end bounce over bumps and uneven pavement
• Loose or unsettled steering feel during normal driving
• Reduced control in front suspension movement on rough roads
• Worn original strut performance that affects ride stability
• Front suspension service needs on 0 in. lift vehicles in the listed fitments

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and front position before installation. This strut uses loop bushing mounts at both ends, so confirm bushing dimensions and mounting style against the original part. The extended bumper stop is included, while the dust shield is not. For best results, inspect related suspension components such as mounts, bushings, and control arm hardware during replacement.

Quality Assurance

Rancho RS5000X struts are built around a specialized valving system and compression-focused damping control to support consistent suspension performance in the listed applications. Part number RS55817 is specified for front use on compatible Chevrolet Trailblazer, GMC Envoy, and related models from 2002-2009.