UMI Performance

Description1964-1972 GM A-Body Rear C/O Kit, Control Arm Relocation, Bolt In 110lb SpringsNote: Rear shocks may not clear all exhaust tail pipes. UMI is not responsible for exhaust clearance issues...

Description1964-1972 GM A-Body Upper A-arms, Adjustable, 0.9” Taller Ball Joints, RedImportant notes: The UMI 4056-3 upper a-arm is designed to work primarily with lowered cars. We do not recommend...

Description1964-1972 GM A-Body Upper A-arms, Adjustable, 0.9” Taller Ball Joints, BlackImportant notes: The UMI 4056-3 upper a-arm is designed to work primarily with lowered cars. We do not...

Description1964-1972 GM A-Body Upper A-arms, Adjustable, 1/2” Taller Ball Joints, RedNOTE : The UMI 4056-2 upper a-arm is designed to work primarily with lowered cars. We do not recommend using...

Description1964-1972 GM A-Body Upper A-arms, Adjustable, 1/2” Taller Ball Joints, BlackNOTE : The UMI 4056-2 upper a-arm is designed to work primarily with lowered cars. We do not recommend...

Description1964-1972 GM A-Body Front Upper A-arms, Adjustable, RedNote: Upper a-arm P/N 4056-1 includes standard height ball joints and must be used with A-Body tall spindles. In most cases shims...

Description1964-1972 GM A-Body Front Upper A-arms, Adjustable, BlackNote: Upper a-arm P/N 4056-1 includes standard height ball joints and must be used with A-Body tall spindles. In most cases...

Description1964-1966 GM A-Body Spring Kit, 2” Lowering2” Lowering with standard SBC, Pontiac 400 and aluminum head/intake Big Block Chevy as well as LS power.

Description1964-1966 GM A-Body Spring Kit, 1” Lowering1” Lowering with standard SBC, Pontiac 400 and aluminum head/intake Big Block Chevy as well as LS power.

Description1967-1972 GM A-Body Spring Kit, 2” Lowering2” Lowering with standard SBC, Pontiac 400 and aluminum head/intake Big Block Chevy as well as LS power.

Description1967-1972 GM A-Body 1″ Lowering Spring SetSuitable for Pro-Tour, Auto-x and general cruising.

Description64-72 GM A-Body 1” Tubular Rear Sway Bar, Chassis Mounted, Red 3.25" Axle DiaOther brand rear ends will vary, please check your axle tube diameter before ordering.

Description64-72 GM A-Body 1” Tubular Rear Sway Bar, Chassis Mounted, Black 3.25" Axle DiaOther brand rear ends will vary, please check your axle tube diameter before ordering.

Description64-72 GM A-Body 1” Tubular Rear Sway Bar, Chassis Mounted, Red 3" Axle DiameterOther brand rear ends will vary, please check your axle tube diameter before ordering.

Description1964-1972 GM A-Body 1” Tubular Rear Sway Bar, Chassis Mounted, Black 3" Axle DiaOther brand rear ends will vary, please check your axle tube diameter before ordering.