UMI Performance

Some competitors may consider these "Race Only" control arms while we consider them Race Ready. Our double adjustable lower control arms feature TIG welded fabrication, reinforced sway bar holes...

Some competitors may consider these "Race Only" control arms while we consider them Race Ready. Our double adjustable lower control arms feature TIG welded fabrication, reinforced sway bar holes...

Installation: New hardware and detailed installation instructions included. Bolting the drive shaft loop in requires drilling (4) holes in the vehicles floor pan. Installation process takes 30-45...

Installation: New hardware and detailed installation instructions included. Bolting the drive shaft loop in requires drilling (4) holes in the vehicles floor pan. Installation process takes 30-45...

UMI Performance 64-72 GM A-Body Factory Height Springs Front

Note: The UMI 4033 upper a-arm is designed to work with factory height or lowered cars. We do not recommend using the 4033 with cargo coils or above stock height cars, as the bump stop may contact...

Note: The UMI 4033 upper a-arm is designed to work with factory height or lowered cars. We do not recommend using the 4033 with cargo coils or above stock height cars, as the bump stop may contact...

UMI Performance 64-72 GM A-Body Front A-arm Kit Delrin Bushings

UMI Performance 64-72 GM A-Body Front A-arm Kit Delrin Bushings

Note: Installation requires cutting and welding. Fabrication is required for installation of P/N 4054.

Note: 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 are not needed. Shims may still be required on some...

Note: 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 are not needed. Shims may still be required on some...

Important notes: The UMI 4056-3 upper a-arm is designed to work primarily with lowered cars. We do not recommend using the 4056-3 with cargo coils or above stock height cars, as the bump stop may...

Important notes: The UMI 4056-3 upper a-arm is designed to work primarily with lowered cars. We do not recommend using the 4056-3 with cargo coils or above stock height cars, as the bump stop may...

NOTE : The UMI 4056-2 upper a-arm is designed to work primarily with lowered cars. We do not recommend using the 4056-2 with cargo coils or above stock height cars, as the bump stop may...