UMI’s bolt-in rear coilover bracket kit is a complete mounting solution for your factory axle 1978-1988 GM G-Body. This race-proven lower bracket bolts in using the standard trailing arm mounting hole as well as an additional reinforcement hole normally used by the standard rear shock. This bracket features a multi-position design to allow further fine tuning of ride height and shock location (±¾â€). The kit also features upper reinforcement tabs to distribute the load from the T-bar as well as complete upper and lower hardware. There is no cutting required and your car can be returned to stock at any time. 100% designed, manufactured and raced out of Philipsburg, PA-USA and always US materials.