QA1 63-72 Chevrolet C10 Rear Suspension Conversion System - Firm - Double Adjustable (250lbs/in)

Additional Information

Rear suspension system with up to 6" drop for 63-72 C10 trucks. Includes adjustable tubular truck arms, double adjustable shocks, high travel springs, C-notch bracket, panhard bar, and brace bar.

Part Type

Coilover Adjustable Spring Lowering Kit

Product Overview

QA1's C10 bolt-on rear suspension system is designed to convert trucks originally equipped with a coil-spring rear suspension to coil-overs. This system offers up to 6" of total drop and integrates adjustability into multiple areas so you can truly fine-tune the geometry to create the perfect performance after lowering. , , By converting the coil-spring rear suspension to adjustable coil-overs, the ride height for each corner can be altered for that perfect stance. From there, the tubular steel truck arms feature an integrated pinion angle adjustment, eliminating the need for angled shims and allowing the wheelbase to be set to exact specifications. The adjustable panhard bar keeps the rear centered for more predictable cornering, and the multiple mounting locations correct roll center geometry based on the amount of drop. The coil-overs are also relocated to the outside of the frame rail, closer to the wheel, for better cornering stability and allowing room for popular aftermarket rear-mounted fuel tanks. In addition to being easily bolted on, the entire rear system can be installed without needing to remove the bed of the truck.

• Adjustable shock valving options for all driving styles
• Best-in-class warranty
• Easy bolt-in install
• Made in the USA
• QA1 uniquely engineered to enhance the performance of your vehicle
• Ride height adjustability

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Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Rear Suspension Package, 0-6.00 in. drop, Includes C-notch. Firm Ride, Double Adjustable. C10, 63-72

QA1 rear suspension conversion systems provide easy, bolt-in options to replace your coil springs on factory truck arms—without any cutting, welding, or other fabricating. Each kit contains frame brackets, axle brackets, linkage assemblies, a crossmember assembly, and necessary hardware. The conversions are available with coilovers or available for use with the factory springs. Order the model designed for fitment on your specific vehicle, and enjoy the stance, handling, and suspension performance of a revolutionary QA1 system.