QA1 Pro-Touring control arms are built for autocross and road course handling. Each arm uses the QA1 Ultra Low Friction ball joint to eliminate flex and deliver bind-free movement, and the ball joints are adjustable and rebuildable for tuning with different stud lengths. High strength tubing and billet aluminum cross shafts keep the arms light while adding strength and durability, and the double shear lower mounting is configured for QA1 Pro Coil systems. The arms are robotically welded and powder coated, and when used together they add roughly 3 to 4 degrees of caster and 0.5 to 1 degree of negative camber.
Specifications:
- Series: QA1 Pro-Touring
- Position: lower control arms
- QA1 Ultra Low Friction ball joint, adjustable and rebuildable
- High strength tubing with billet aluminum cross shafts
- Double shear lower mounting configured for QA1 Pro Coil systems
- Robotically welded and powder coated
- Adds about 3 to 4 degrees caster and 0.5 to 1 degree negative camber when used together
- Part number: 52537
Vehicle Applications:
- 1965 Buick Special
- 1966 Buick Special
- 1967 Buick Special
- 1968 Buick Special
- 1969 Buick Special
- 1964 Chevrolet Chevelle
- 1965 Chevrolet Chevelle
- 1966 Chevrolet Chevelle
- 1967 Chevrolet Chevelle
- 1968 Chevrolet Chevelle
- 1969 Chevrolet Chevelle
- 1970 Chevrolet Chevelle
- 1971 Chevrolet Chevelle
- 1972 Chevrolet Chevelle
- 1964 Chevrolet El Camino
- 1965 Chevrolet El Camino
- 1966 Chevrolet El Camino
- 1967 Chevrolet El Camino
- 1968 Chevrolet El Camino
- 1969 Chevrolet El Camino
- 1970 Chevrolet El Camino
- 1971 Chevrolet El Camino
- 1972 Chevrolet El Camino
- 1964 Chevrolet Malibu
- 1965 Chevrolet Malibu
- 1966 Chevrolet Malibu
- 1967 Chevrolet Malibu
- 1970 Chevrolet Monte Carlo
- 1971 Chevrolet Monte Carlo
- 1972 Chevrolet Monte Carlo
- 1964 Oldsmobile 442
- 1965 Oldsmobile 442
- 1966 Oldsmobile 442
- 1967 Oldsmobile 442
- 1968 Oldsmobile 442
- 1969 Oldsmobile 442
- 1970 Oldsmobile 442
- 1971 Oldsmobile 442
- 1964 Oldsmobile Cutlass
- 1965 Oldsmobile Cutlass
- 1966 Oldsmobile Cutlass
- 1967 Oldsmobile Cutlass
- 1968 Oldsmobile Cutlass
- 1969 Oldsmobile Cutlass
- 1970 Oldsmobile Cutlass
- 1971 Oldsmobile Cutlass
- 1972 Oldsmobile Cutlass
- 1967 Oldsmobile Cutlass Supreme
- 1968 Oldsmobile Cutlass Supreme
- 1969 Oldsmobile Cutlass Supreme
- 1970 Oldsmobile Cutlass Supreme
- 1971 Oldsmobile Cutlass Supreme
- 1972 Oldsmobile Cutlass Supreme
- 1964 Oldsmobile Vista Cruiser
- 1965 Oldsmobile Vista Cruiser
- 1966 Oldsmobile Vista Cruiser
- 1967 Oldsmobile Vista Cruiser
- 1968 Oldsmobile Vista Cruiser
- 1969 Oldsmobile Vista Cruiser
- 1970 Oldsmobile Vista Cruiser
- 1971 Oldsmobile Vista Cruiser
- 1972 Oldsmobile Vista Cruiser
- 1969 Pontiac Grand Prix
- 1970 Pontiac Grand Prix
- 1971 Pontiac Grand Prix
- 1972 Pontiac Grand Prix
- 1964 Pontiac GTO
- 1965 Pontiac GTO
- 1966 Pontiac GTO
- 1967 Pontiac GTO
- 1968 Pontiac GTO
- 1969 Pontiac GTO
- 1970 Pontiac GTO
- 1971 Pontiac GTO
- 1972 Pontiac GTO
- 1964 Pontiac LeMans
- 1965 Pontiac LeMans
- 1966 Pontiac LeMans
- 1967 Pontiac LeMans
- 1968 Pontiac LeMans
- 1969 Pontiac LeMans
- 1970 Pontiac LeMans
- 1971 Pontiac LeMans
- 1972 Pontiac LeMans
- 1964 Pontiac Tempest
- 1965 Pontiac Tempest
- 1966 Pontiac Tempest
- 1967 Pontiac Tempest
- 1968 Pontiac Tempest
- 1969 Pontiac Tempest
- 1970 Pontiac Tempest
FAQ
What type of control arm is this?
It is a QA1 Pro-Touring lower control arm set designed for autocross and road course handling on GM A and G-Body vehicles.
What ball joint does it use?
It uses the QA1 Ultra Low Friction ball joint, which is adjustable and rebuildable for tuning with different stud lengths.
How much alignment change do these arms add?
When upper and lower arms are used together they add about 3 to 4 degrees of caster and 0.5 to 1 degree of negative camber. Used on their own they add roughly half of those figures.
Are these arms set up for coil-overs?
Yes. The double shear lower mounting is configured for QA1 Pro Coil systems.

