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: 52519
Vehicle Applications:
- 1973 Buick Apollo
- 1974 Buick Apollo
- 1967 Chevrolet Camaro
- 1968 Chevrolet Camaro
- 1969 Chevrolet Camaro
- 1968 Chevrolet Chevy II
- 1969 Chevrolet Nova
- 1970 Chevrolet Nova
- 1971 Chevrolet Nova
- 1972 Chevrolet Nova
- 1973 Chevrolet Nova
- 1974 Chevrolet Nova
- 1973 Oldsmobile Omega
- 1974 Oldsmobile Omega
- 1967 Pontiac Firebird
- 1968 Pontiac Firebird
- 1969 Pontiac Firebird
- 1971 Pontiac Ventura
- 1972 Pontiac Ventura
- 1973 Pontiac Ventura
- 1974 Pontiac Ventura
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 F and X-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.

