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UMI Performance 82-92 GM F-Body Front and Rear Weight Jack Kit Race

Take your classic muscle car to the next level with UMI Performance's 1982-1992 GM F-Body Front and Rear Weight Jack Kit, designed for auto-x and road racing with occasional street use. This 100% Made in USA kit features 1050lb/in front and 200 lb/in custom wound rear springs, providing a firm ride and improved handling.

Built from strong US Steel, the jack plates ride on UMI exclusive thrust bearings, spreading the load evenly and allowing for easy height adjustment. The kit is suitable for competition and has been race proven, with most track testing accomplished at 2" drop from stock.

  • 1050 lb/in front and 200 lb/in rear premium racing springs
  • Strong 1/4" thick construction, CNC laser cut USA steel
  • Acme thread and thrust bearing for easy ride height adjustment
  • Allows independent corner weight tuning, essential for proper road race and auto-x handling
  • Maintains factory clearance around the strut and allows maximum tire and wheel width
Make Model Year Type
Chevrolet Camaro 1982 Berlinetta
Chevrolet Camaro 1982 Sport
Chevrolet Camaro 1982 Z28
Chevrolet Camaro 1982 Z28 Indianapolis 500 Pace Car
Chevrolet Camaro 1983 Berlinetta
Chevrolet Camaro 1983 Sport
Chevrolet Camaro 1983 Z28
Chevrolet Camaro 1984 Berlinetta
Chevrolet Camaro 1984 Sport
Chevrolet Camaro 1984 Z28
Chevrolet Camaro 1985 Berlinetta
Chevrolet Camaro 1985 Iroc-Z
Chevrolet Camaro 1985 Sport
Chevrolet Camaro 1985 Z28
Chevrolet Camaro 1986 Berlinetta
Chevrolet Camaro 1986 Iroc-Z
Chevrolet Camaro 1986 Sport
Chevrolet Camaro 1986 Z28
Chevrolet Camaro 1987 Iroc-Z
Chevrolet Camaro 1987 LT
Chevrolet Camaro 1987 Sport
Chevrolet Camaro 1987 Z28
Chevrolet Camaro 1988 Base
Chevrolet Camaro 1988 Iroc-Z
Chevrolet Camaro 1989 Iroc-Z
Chevrolet Camaro 1989 RS
Chevrolet Camaro 1990 Iroc-Z
Chevrolet Camaro 1990 RS
Chevrolet Camaro 1991 RS
Chevrolet Camaro 1991 Z28
Chevrolet Camaro 1992 RS
Chevrolet Camaro 1992 RS Heritage Edition
Chevrolet Camaro 1992 Z28
Chevrolet Camaro 1992 Z28 Heritage Edition
Pontiac Firebird 1982 Base
Pontiac Firebird 1982 S/E
Pontiac Firebird 1982 Trans Am
Pontiac Firebird 1983 Base
Pontiac Firebird 1983 S/E
Pontiac Firebird 1983 Trans Am
Pontiac Firebird 1984 Base
Pontiac Firebird 1984 S/E
Pontiac Firebird 1984 Trans Am
Pontiac Firebird 1985 Base
Pontiac Firebird 1985 S/E
Pontiac Firebird 1985 Trans Am
Pontiac Firebird 1986 Base
Pontiac Firebird 1986 S/E
Pontiac Firebird 1986 Trans Am
Pontiac Firebird 1987 Base
Pontiac Firebird 1987 Trans Am
Pontiac Firebird 1988 Base
Pontiac Firebird 1988 Trans Am
Pontiac Firebird 1989 Base
Pontiac Firebird 1989 Formula
Pontiac Firebird 1989 Trans Am
Pontiac Firebird 1989 Trans Am GTA
Pontiac Firebird 1989 Trans Am GTA SE
Pontiac Firebird 1990 Base
Pontiac Firebird 1990 Formula
Pontiac Firebird 1990 Trans Am
Pontiac Firebird 1990 Trans Am GTA
Pontiac Firebird 1991 Base
Pontiac Firebird 1991 Formula
Pontiac Firebird 1991 Trans Am
Pontiac Firebird 1991 Trans Am GTA
Pontiac Firebird 1992 Base
Pontiac Firebird 1992 Formula
Pontiac Firebird 1992 Trans Am
Pontiac Firebird 1992 Trans Am GTA
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