The QA1 GM Pro front coil-over shock delivers adjustable valving and ride height for classic GM suspensions. Built from lightweight billet aluminum, it bolts in with factory or upgraded QA1 tubular control arms and offers up to 2in of ride height adjustment to set the stance. Single-adjustable valving firms or softens the overall ride with one knob for street or performance driving. Each shock is 100 percent dyno tested, serialized, and made in the USA, and can be serviced or rebuilt by QA1 authorized service centers. A Limited Lifetime Warranty is included.
Specifications:
- Series: QA1 GM Pro coil-over shock
- Position: Front
- Valving: Single-adjustable
- Body: Lightweight billet aluminum
- Mounting: Stock mount
- Length (collapsed/extended): 10.125in/15in
- Ride height: Adjustable, up to 2in
- Installation: Bolt-in, works with factory or QA1 tubular control arms
- Testing: 100 percent dyno tested and serialized
- Service: Rebuildable by QA1 authorized service centers
- Warranty: Limited Lifetime
- Part number: GS501
Vehicle Applications:
- 1965 Buick Gran Sport
- 1966 Buick Gran Sport
- 1967 Buick Gran Sport
- 1964 Buick Skylark
- 1965 Buick Skylark
- 1966 Buick Skylark
- 1967 Buick Skylark
- 1964 Buick Special
- 1965 Buick Special
- 1966 Buick Special
- 1967 Buick Special
- 1955 Chevrolet Bel Air
- 1956 Chevrolet Bel Air
- 1957 Chevrolet Bel Air
- 1970 Chevrolet Camaro
- 1971 Chevrolet Camaro
- 1972 Chevrolet Camaro
- 1973 Chevrolet Camaro
- 1974 Chevrolet Camaro
- 1975 Chevrolet Camaro
- 1976 Chevrolet Camaro
- 1977 Chevrolet Camaro
- 1978 Chevrolet Camaro
- 1979 Chevrolet Camaro
- 1980 Chevrolet Camaro
- 1981 Chevrolet Camaro
- 1964 Chevrolet Chevelle
- 1965 Chevrolet Chevelle
- 1966 Chevrolet Chevelle
- 1967 Chevrolet Chevelle
- 1964 Chevrolet El Camino
- 1965 Chevrolet El Camino
- 1966 Chevrolet El Camino
- 1967 Chevrolet El Camino
- 1955 Chevrolet Truck
- 1956 Chevrolet Truck
- 1957 Chevrolet Truck
- 1955 Chevrolet Two-Ten Series
- 1956 Chevrolet Two-Ten Series
- 1957 Chevrolet Two-Ten Series
- 1964 Oldsmobile 442
- 1965 Oldsmobile 442
- 1966 Oldsmobile 442
- 1967 Oldsmobile 442
- 1964 Oldsmobile Cutlass
- 1965 Oldsmobile Cutlass
- 1966 Oldsmobile Cutlass
- 1967 Oldsmobile Cutlass
- 1964 Oldsmobile Vista Cruiser
- 1965 Oldsmobile Vista Cruiser
- 1966 Oldsmobile Vista Cruiser
- 1967 Oldsmobile Vista Cruiser
- 1970 Pontiac Firebird
- 1971 Pontiac Firebird
- 1972 Pontiac Firebird
- 1973 Pontiac Firebird
- 1974 Pontiac Firebird
- 1975 Pontiac Firebird
- 1976 Pontiac Firebird
- 1977 Pontiac Firebird
- 1978 Pontiac Firebird
- 1979 Pontiac Firebird
- 1980 Pontiac Firebird
- 1981 Pontiac Firebird
- 1964 Pontiac GTO
- 1965 Pontiac GTO
- 1966 Pontiac GTO
- 1967 Pontiac GTO
- 1964 Pontiac LeMans
- 1965 Pontiac LeMans
- 1966 Pontiac LeMans
- 1967 Pontiac LeMans
- 1964 Pontiac Tempest
- 1965 Pontiac Tempest
- 1966 Pontiac Tempest
- 1967 Pontiac Tempest
FAQ
Is the GS501 a bolt-in shock?
Yes. The GM Pro front coil-over shock bolts in and works with factory or upgraded QA1 tubular control arms.
How much ride height adjustment is available?
The threaded billet aluminum body offers up to 2in of ride height adjustment to set the stance.
What valving does the GS501 use?
The shock is single-adjustable, firming or softening the overall ride through one knob.
Can these shocks be rebuilt?
Yes. They are 100 percent dyno tested and serialized and are serviceable and rebuildable by QA1 authorized service centers, with a Limited Lifetime Warranty.

