Catapult® arms are designed to put maximum power to the ground to deliver ultimate performance off the line. Stock trailing arms are flimsy and weak, leading to poor handling and excessive wheel hop. Competitor’s steel lower trailing arms with polyurethane bushings are heavy and don’t allow the axle to move freely throughout the range of motion. PST’s Catapult® Billet Aluminum Lower Trailing Arms solve this problem with an innovative solution that delivers smooth, consistent, predictable handling for your GM A-body.

· Aerospace-grade billet aluminum lower trailing arms
· Fabricated steel adjustable upper arms allow for on-car adjustment
· Low friction Delrin®, bind-free Alu-Max® Pivot Joint on upper and lower arms
· Achieve lower 60-foot times and better cornering
 

1964 – 72 GM A-Body Catapult Billet Aluminum Trailing Arms