UMI Performance 1964-1972 GM A-Body 2" Lowering Spring Set - Front 31013BK wrap around design covering all

wrap around design covering all the foma on the head of the seat

Anodized Black with Steel Nickel knurled adjustment wheel making it attractive and functional

Improves Horsepower And Performance

5 in Center Inlet Outlet

3 in Linkage Cam

UMI Performance 1964-1972 GM A-Body 2" Lowering Spring Set - Front 31013BK wrap around design covering allA 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