QA1 R140-170 Rear Suspension Conversion System for 1988-1998 Chevrolet C1500, Single Adjustable, Soft (170lbs/in)

Fits 1988-1998 Chevrolet C1500 2WD pickups across all submodels including 454 SS, Base, Cheyenne, Scottsdale, Silverado, and WT.

The QA1 Rear Suspension Conversion System modernizes the handling and stance of your GMT400 C1500 without the need to remove the truck bed. Engineered as a high-performance alternative to traditional 4-link setups, this system provides a 4-inch to 7-inch drop while eliminating the binding issues common in other designs. The torque arm and panhard bar configuration offers superior control over axle movement, allowing you to dial in a precise stance and a smooth, compliant ride.

This "Soft" spring rate configuration features 170lbs/in springs and single-adjustable shocks, allowing you to tune the rebound damping to your specific driving preference. The system is entirely bolt-in, requiring no welding for installation. Every component, from the bracket mounts to the trailing arms, is designed to be adjustable independently so that one change does not negatively impact another setting.

• MPN: R140-170
• Spring Rate: 170 lbs/in (Soft)
• Adjustability: Single-adjustable shock valving (rebound)
• Drop Range: 4" to 7" below factory ride height
• Installation: 100% bolt-on; no welding or bed removal required
• Construction: Proudly manufactured in Lakeville, Minnesota
• Testing: All shocks are 100% dyno tested and serialized
• Hardware: Includes all necessary mounting hardware, panhard bar, torque arm, and trailing arms