Fit For 1955-57 Chevy Fullsize Tri-five Tubular Control Arms, Upper & Lower A- Arm Set MT042001 81329701Description: These control arms are designed for use with factory coil springs or aftermarket coil over shocks. Control arms are black powdercoated and include no squeak polyurethane bushings with grease fittings. These control arms are much stronger than stock and all joints are T. I. G welded for strength and durability. They feature high quality ball joints with dust boots and feature bump stops to protect the ball joint at full drop. Fitment: For