UMI Performance 1967-1972 GM A-Body 1" Lowering Spring Kit Trailing Arm 1979-1979 GMC C1500

1979-1979 GMC C1500

locks (see drawing)

Kit Includes Street Performance shock absorbersNo matter what your lowered truck suspension needs are

We recommend the use of Edelbrock Gasgacinch (Part #9300) on the intake manifold mounting surfaces of the cylinder head and on the bottom side of the intake manifold gaskets (side without silicon beads)

The Zamp ZR-50 Youth Race Shoe features high-quality multi-layer construction

UMI Performance 1967-1972 GM A-Body 1" Lowering Spring Kit Trailing Arm 1979-1979 GMC C1500A spring is a spring right? Wrong! When UMI chose to manufacture our own line of springs we went all out. Designed in conjunction with a leading Sprint Cup chassis engineer, these springs are the best in the business. Our front springs are wound from 5160 CrSi premium wire and feature a linear 530 lb in rate. The rear springs are wound from 9254 CrSi premium wire and feature a linear 130 lb in rate. The linear rate provides consistent handling