Upgrade your 1963–1972 Chevy C10 with a rear suspension system designed to improve stance, ride quality, and handling. This QA1 bolt-on rear suspension system converts your truck’s factory coil-spring rear suspension to fully adjustable coilovers, giving you greater control over ride height, suspension performance, and overall drivability.
Designed specifically for coil-spring C10 trucks, this system provides up to 6 inches of ride height adjustment, allowing you to achieve the perfect stance while improving stability and handling.

Tune Your Performance and Ride Comfort
This system features double adjustable coilovers, allowing independent tuning of compression and rebound to match your driving style and vehicle setup.
With 18-position adjustment knobs, tuning changes are quick and easy—simply reach the base of the shock to dial in your preferred ride quality or performance settings.
Relocating the coilovers outside the frame rails and closer to the wheels improves cornering stability and suspension control, helping your truck feel more planted and responsive.
Additional suspension geometry adjustments include:
- Adjustable panhard bar to keep the rear axle centered
- Multiple mounting points for roll center tuning based on ride height
- Integrated pinion angle adjustment for proper driveline alignment
INSTALLS WITHOUT REMOVING YOUR BED
QA1 designed this system for straightforward bolt-on installation without the need to remove the truck bed.
The kit mounts directly to your C10 frame with minimal fabrication required, making it an ideal upgrade for both home builders and professional installers.
The design also provides clearance for popular aftermarket rear-mounted fuel tanks, ensuring compatibility with many common truck builds.
EASILY ADJUST STANCE & PINION ANGLE
QA1’s C10 rear suspension system offers full adjustability to meet your specific goals. Whether you’re aiming for an aggressive 6-inch drop or a more subtle stance, this system gives you complete control over your ride height, wheelbase, and pinion angle, allowing you to achieve the exact stance and performance you desire. A standout feature of the QA1 kit is its adjustable pinion angle, which eliminates the need for clumsy spacers.
BEST-IN-CLASS WARRANTY
QA1’s coilover shocks are covered by a Limited Lifetime Warranty. For peace of mind, simply register at QA1.net/Warranty and enjoy lifetime coverage as long as you own your truck.
FEATURES & BENEFITS
- Converts factory coil-spring suspension to adjustable rear coilovers
- Up to 6 inches of ride height adjustment for dialing in stance
- Double adjustable coilovers with 18-position compression and rebound tuning
- Tubular truck arms with integrated pinion angle adjustment
- Relocated coilovers for improved cornering stability
- Adjustable panhard bar keeps the rear axle centered
- Bolt-on installation designed without removing the truck bed
- Compatible with popular aftermarket rear-mounted fuel tanks
FITMENT NOTES
- Designed for 1963-1972 Chevy C10 trucks
- Does not fit leaf spring equipped trucks (Commonly GMC’s)
- Up to 6" of total ride height adjustment
- Compatible with popular aftermarket rear-mounted fuel tanks
Specifications
- Spring Rate200lb/in.
- Shock ValvingDouble Adjustable