QA1 70-81 GM F-Body, 73-77 A-Body, 75-79 X-Body, 78-96 B-Body Pro Touring Lower Control Arms

QA1’s Pro Touring Lower Control Arms are built to meet the handling demands of autocross and road course driving. These arms are designed with QA1’s Ultra Low Friction Ball Joint, eliminating flex and providing bind-free movement for optimal suspension performance. The one-inch longer upper ball joint stud improves camber gain, ensuring your tire maintains optimal contact with the road for superior cornering grip.

These control arms are configured specifically for QA1 Pro Coil Systems with double shear lower mounting, adding durability and strength. Adjustable and rebuildable ball joints allow for easy tuning, while the high-strength tubing and billet aluminum cross shafts provide exceptional strength and reduced weight. Robotically welded and powder-coated, these arms not only perform well but look great too.

When paired with QA1 upper control arms, these lower control arms can add 3-4 degrees of caster and 0.5 to 1 degree of negative camber for improved handling and cornering performance. Used independently, they contribute approximately half these gains.

FEATURES & BENEFITS

Ultra Low Friction Ball Joints: Eliminates flex and provides smooth, bind-free suspension movement.
Camber Gain Improvement: Longer ball joint stud keeps tire contact optimal for superior cornering grip.
Adjustable & Rebuildable: Ball joints allow tuning for different driving needs and easy maintenance.
Lightweight & Strong: High-strength tubing and billet aluminum cross shafts for improved strength and durability.
Optimized Alignment: Adds 3-4 degrees of caster and 0.5-1 degree of negative camber when used with QA1 upper arms.
Durable Finish: Powder-coated finish for long-lasting durability and a clean appearance.