UMI’s rear leaf spring is a high performance solution to lowering the rear of your 1970-1981 Camaro or Firebird. These springs feature high quality US Steel, multi-leaf construction and lower the car an average of 2" to 2-½" below stock ride...

UMI's leaf spring installation kit works with UMI P/N 2620 leaf springs as well as other stock location leaf springs. The kit is a great choice for street and performance use. Kit includes high quality u-bolts, polyurethane isolators and front bolt. Made...

UMI’s leaf spring and Delrin shackle kit is a heavy duty, Made In USA solution to lowering the rear of your 2nd Gen. These springs feature high quality US Steel, multi-leaf construction and lower the car an average of 2" to 2-½" below stock...

UMI’s leaf spring and poly shackle kit is a complete, high performance solution to lower the rear of your 2nd Gen. These springs feature high quality US Steel, multi-leaf construction and lower the car an average of 2" to 2-½" below stock...

UMI’s 2nd Gen F-body lowering springs are wound from 5160 CrSi premium wire and feature a linear 600 lb/in rate. UMI’s front springs are stiffer than stock to provide increased performance with decreased body roll and a lower center of...

UMI’s street front end kit includes everything to completely transform the front end of the 2nd Gen F-Body into a street friendly, corner capable, modern handling muscle car. The foundation is UMI's high caster fabricated upper and lower a-arms...

UMI’s street front end kit includes everything to completely transform the front end of the 2nd Gen F-Body into a street friendly, corner capable, modern handling muscle car. The foundation is UMI's high caster fabricated upper and lower a-arms...

UMI’s Stage 1 handling kit is the cost effective way to refresh your trusty 2nd Gen and bring the joy back to daily driving. The kit includes 2" UMI front lowering springs (600 lb/in rate) and rear lowering leafs (175 lb/in) which takes away that...

Applications: 1970-1981 Chevrolet Camaro (all models) 1970-1981 Pontiac Firebird (all models) 1964-1972 Chevrolet Chevelle, Monte Carlo, Malibu, El Camino 1964-1972 Buick Skylark, Grand Sport, Special 1964-1972 Pontiac Lemans, GTO, Tempest 1964-1972...

Applications: 1970-1981 Chevrolet Camaro (all models) 1970-1981 Pontiac Firebird (all models) 1964-1972 Chevrolet Chevelle, Monte Carlo, Malibu, El Camino 1964-1972 Buick Skylark, Grand Sport, Special 1964-1972 Pontiac Lemans, GTO, Tempest 1964-1972...

UMI’s 2664 aluminum body mounts are a direct replacement for worn out factory body mounts and are used to restore the body location to factory position. These aluminum body mounts are great for handling or drag race cars as they give the car a...

The Detroit Speed, Inc. rear leaf spring suspension kit works great with any of our front suspension systems. Detroit Speed leaf springs improve handling due to the increased spring rate and are available in either a 2" or 3" drop to lower ride height...