BMR rear frame notch kit for 1978–1988 GM G-Body applications provides a direct-fit chassis modification for the rear frame on G-Body cars. Supplied as a model-specific kit, it is intended to alter rear frame sections where a notch is required for compatible modifications. The listing identifies this kit by vehicle years and platform for straightforward application to 78–88 GM G-Body rear frames.
BMR 78-88 GM G-Body Rear Frame Notch Kit