UMI 64-72 GM A-Body Rear Coilover Conversion Brackets

UMI Performance is known for making well-built suspension components for classic American muscle cars. If you're looking to upgrade the rear suspension on your 1964-1972 GM A-Body, like a Chevrolet Chevelle or Pontiac GTO, these coilover conversion brackets are a solid option. They let you fine-tune your ride height, spring rate, and damping, giving you much more control over how your car handles.

These brackets are designed to bolt directly onto existing Quick Performance rear lower control arm mounts, making installation more straightforward. The upper mount is reinforced to handle a 2-1/2 inch racing coilover with a double-shear setup. The lower brackets were designed using FEA analysis and include a 2-hole adjustment for the trailing arm height. This adjustment lets you precisely tune the instant center location, which is key for getting the best performance out of your suspension, especially if you're using the car for drag racing. They are made with 100% US materials and manufactured in Philipsburg, Pennsylvania.

It's recommended to install the brackets first and then measure center-to-center at ride height to ensure you order the correct shock part numbers. While these are designed as a bolt-in kit for Quick Performance rears, welding is recommended for drag racing applications to ensure maximum strength.