This QA1 GM Pro Coil System delivers fully adjustable ride height and valving control. It uses independent compression and rebound double adjustable valving in a lightweight billet aluminum body with a fully threaded body for ride height adjustment. The kit includes a 10 inch high travel spring rated at 450 with a tapered flat end. It has a compressed length of 10.13 inches and an extended length of 14 inches. These systems are sold in pairs, are 100 percent dyno tested, serialized and made in the USA, and are used in drag racing, street performance, autocross, road racing and street rod applications.
Specifications:
- Type: GM Pro Coil System (coil-over shock and spring)
- Valving: independent compression and rebound double adjustable
- Body: lightweight billet aluminum, fully threaded for ride height adjustment
- Spring: 10 in high travel, 450 rate, tapered flat end
- Compressed length: 10.13 in
- Extended length: 14 in
- Sold in pairs
- Made in the USA, dyno tested and serialized
- Part number: GD401-10450B
Vehicle Applications:
- 1968 Buick Skylark
- 1969 Buick Skylark
- 1970 Buick Skylark
- 1971 Buick Skylark
- 1972 Buick Skylark
- 1968 Buick Special
- 1969 Buick Special
- 1968 Chevrolet Chevelle
- 1969 Chevrolet Chevelle
- 1970 Chevrolet Chevelle
- 1971 Chevrolet Chevelle
- 1972 Chevrolet Chevelle
- 1968 Chevrolet El Camino
- 1969 Chevrolet El Camino
- 1970 Chevrolet El Camino
- 1971 Chevrolet El Camino
- 1972 Chevrolet El Camino
- 1971 GMC Sprint
- 1972 GMC Sprint
- 1968 Oldsmobile 442
- 1969 Oldsmobile 442
- 1970 Oldsmobile 442
- 1971 Oldsmobile 442
- 1968 Oldsmobile Cutlass
- 1969 Oldsmobile Cutlass
- 1970 Oldsmobile Cutlass
- 1971 Oldsmobile Cutlass
- 1972 Oldsmobile Cutlass
- 1968 Oldsmobile Vista Cruiser
- 1969 Oldsmobile Vista Cruiser
- 1970 Oldsmobile Vista Cruiser
- 1971 Oldsmobile Vista Cruiser
- 1972 Oldsmobile Vista Cruiser
- 1968 Pontiac GTO
- 1969 Pontiac GTO
- 1970 Pontiac GTO
- 1971 Pontiac GTO
- 1972 Pontiac GTO
- 1968 Pontiac LeMans
- 1969 Pontiac LeMans
- 1970 Pontiac LeMans
- 1971 Pontiac LeMans
- 1972 Pontiac LeMans
- 1968 Pontiac Tempest
- 1969 Pontiac Tempest
- 1970 Pontiac Tempest
FAQ
What is included with the GD401-10450B Pro Coil System?
It includes QA1 billet aluminum double adjustable coil-over shocks with 10 inch 450 rate high travel springs and is sold in pairs.
What valving does this system use?
It uses independent compression and rebound double adjustable valving, so compression and rebound can be tuned separately.
Is the ride height adjustable?
Yes. The fully threaded shock body lets ride height be adjusted for the desired stance and corner weighting.
What vehicles does this kit fit?
It fits the GM applications listed in the vehicle applications section above.
