UMI Performance 1967-1988 GM A/G-Body 2" Lowering Spring Set - Rear YA0821 "Super Flow" O-ring sealed oil

"Super Flow" O-ring sealed oil pumps are manufactured on our new Mori-Seiki machining centers to precision aerospace tolerances to provide the ultimate in volume efficiency

Modern Muscle

Holley 2-Barrel

11/32 In X 95 ft Steel Rope

s dash gauges looking and working like new has never been so easy

UMI Performance 1967-1988 GM A/G-Body 2" Lowering Spring Set - Rear YA0821 "Super Flow" O-ring sealed oilA 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