UMI Performance 1967-1988 GM A/G-Body 2" Lowering Spring Set - Rear Cooling & Heating Deals Height (rear) - 6

Height (rear) - 6

Replacement Pad

Dual 3/8 in NPT Inlets

2007-2019 GMC Sierra 3500 HD Crew Cab Pickup

1960-1991 Mercury Colony Park

UMI Performance 1967-1988 GM A/G-Body 2" Lowering Spring Set - Rear Cooling & Heating Deals Height (rear) - 6A 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