This QA1 bolt-on rear suspension system converts 1963-1972 Chevy C10 trucks with factory coil-spring rear suspension over to coil-overs. It offers up to 6 inches of total drop and builds adjustability into several areas so the geometry can be fine-tuned after lowering. Ride height is set corner by corner, the tubular steel truck arms include integrated pinion-angle adjustment that eliminates angled shims, and an adjustable panhard bar keeps the rear axle centered. The coil-overs mount outside the frame rail for better cornering stability and to clear popular rear-mounted fuel tanks. The complete system bolts in without removing the bed. This version uses double-adjustable shocks with 200 lb/in springs for a medium rate.
Specifications:
- Type: bolt-on rear coil-over conversion (replaces factory coil-spring rear)
- Shocks: double adjustable coil-overs
- Spring rate: 200 lb/in (medium)
- Total drop: up to 6 inches
- Arms: tubular steel truck arms with integrated pinion-angle adjustment
- Includes: adjustable panhard bar; coil-overs relocated outside the frame rail
- Installation: bolt-in; bed removal not required
- Part number: R210-200
Vehicle Applications:
- 1963 Chevrolet C10 Panel
- 1964 Chevrolet C10 Panel
- 1965 Chevrolet C10 Panel
- 1966 Chevrolet C10 Panel
- 1967 Chevrolet C10 Panel
- 1963 Chevrolet C10 Pickup
- 1964 Chevrolet C10 Pickup
- 1965 Chevrolet C10 Pickup
- 1966 Chevrolet C10 Pickup
- 1967 Chevrolet C10 Pickup
- 1968 Chevrolet C10 Pickup
- 1969 Chevrolet C10 Pickup
- 1970 Chevrolet C10 Pickup
- 1971 Chevrolet C10 Pickup
- 1972 Chevrolet C10 Pickup
- 1967 Chevrolet C10 Suburban
- 1968 Chevrolet C10 Suburban
- 1969 Chevrolet C10 Suburban
- 1970 Chevrolet C10 Suburban
- 1971 Chevrolet C10 Suburban
- 1972 Chevrolet C10 Suburban
FAQ
What does the QA1 R210-200 system convert?
It converts the factory coil-spring rear suspension on 1963-1972 Chevy C10 trucks to adjustable coil-overs.
How much drop does it provide?
The system offers up to 6 inches of total drop, with ride height adjustable at each corner.
What spring rate is this version?
This kit uses double-adjustable shocks with 200 lb/in springs, a medium rate.
Does the bed need to come off to install it?
No. The entire rear system bolts on and can be installed without removing the truck bed.

