UMI Performance 1964-1972 GM A-Body 2" Lowering Spring Set - Front Cam Phaser Limiter Proform Push-In Air Breather Cap

Proform Push-In Air Breather Cap 66013

as well as SFI 6

Why DMI Sprint Race Components

1975-1987 Chevrolet G10

UMI Performance 1964-1972 GM A-Body 2" Lowering Spring Set - Front Cam Phaser Limiter Proform Push-In Air Breather CapA 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