UMI 64-72 GM A-Body Coil Over Conversion Brackets Kit -2in to -3in Ride Height - 175lb Spring Rate

If you're looking to significantly upgrade the rear suspension on your classic GM A-Body, this UMI Performance bolt-in coilover conversion kit is a serious option. It's designed to let you dial in your ride height, spring rate, and damping, giving you much more control over how your car handles, whether you're cruising or hitting the drag strip. This kit is built for a range of popular GM A-Body models from 1964 to 1972, including the Chevrolet Chevelle, Pontiac GTO, and Buick Skylark.

What sets this kit apart is the attention to detail in its construction and adjustability. The upper mounts are beefed up to handle a 2-1/2 inch racing coilover with a double-shear setup, which is a strong configuration for handling the forces involved. The lower brackets were designed using FEA analysis and bolt directly onto existing Quick Performance rear lower control arm mounts, meaning you don't have to cut and weld for basic installation. Plus, these lower brackets have a 2-hole adjustment for the trailing arm height. This lets you fine-tune the instant center location, which is key for optimizing traction and handling characteristics, especially for drag racing applications. The kit is made with 100% US materials and manufactured in Philipsburg, Pennsylvania, so you know it's built tough.

When installing, UMI recommends getting the brackets on first and then measuring center-to-center at your desired ride height. This ensures you pick the exact shock part numbers that will work best for your specific setup. While the brackets themselves are a bolt-on affair, welding is recommended for drag racing use to further reinforce the setup. This kit is designed for direct installation with Quick Performance rears, so make sure you have those components in place.