The QA1 52719 street control arms are an upgrade for vehicles driven mainly for cruising and longer distances. They are configured for QA1 Pro Coil systems with double-shear lower mounting, and high-strength tubing with billet aluminum cross shafts keeps them light while improving strength and durability. Polyurethane bushings isolate road noise for a smoother ride while staying stiff enough for good handling, and the integrated QA1 ball joint is stronger than the factory piece for long service. The arms are robotically welded and powder coated. Used as a set they are designed to add 3 to 4 degrees of caster and 0.5 to 1 degree of negative camber, and about half of those figures when used on their own.
Specifications:
- Type: tubular street performance lower control arm kit, sold as a set
- Ball joint: integrated QA1 ball joint, stronger than factory
- Bushings: polyurethane to isolate road noise while keeping handling tight
- Construction: high-strength tubing with billet aluminum cross shafts
- Mounting: configured for QA1 Pro Coil systems with double-shear lower mounting
- Alignment: adds 3-4 degrees caster and 0.5 to 1 degree negative camber when used as a set
- Finish: powder coated
- Made in the USA
- Part number: 52719
Vehicle Applications:
- 1973 Buick Apollo
- 1974 Buick Apollo
- 1971 Pontiac Ventura
- 1972 Pontiac Ventura
- 1973 Pontiac Ventura
- 1974 Pontiac Ventura
FAQ
What is the QA1 52719 control arm kit for?
It is a street-oriented upgrade for cruising and longer-distance driving, with polyurethane bushings that isolate road noise while keeping handling tight.
What ball joint does it use?
It uses an integrated QA1 ball joint that is stronger than the factory ball joint for long service.
How much alignment change does it add?
Used as a set the arms are designed to add 3 to 4 degrees of caster and 0.5 to 1 degree of negative camber, and about half of those figures when used on their own.
What vehicles does the 52719 lower control arm kit fit?
The listing's own fit table lists 1973-1974 Buick Apollo and 1971-1974 Pontiac Ventura.

