UMI Performance 78-88 GM G-Body Rear Frame Notching Kit Weld In

This UMI Performance frame notching kit is made from 1/8” precision laser-cut mild steel, designed to help you narrow the rear upper frame rails on your GM G-Body. This modification is key if you're looking to fit a wider tire under your car, giving you more options for performance rubber or a custom look. The laser-cut steel follows the frame contour closely, with a slight overhang intentionally built in to accommodate variations in GM frames, making it easier to get a good fit before welding.

The kit includes end enclosures to smoothly span the gap between the new notch and your original frame rails, creating a solid, integrated structure. Because this is a weld-in kit, cutting, welding, and fabrication skills are necessary for installation. It's designed to be welded with a standard Mig welder. This kit is a popular choice for G-Body owners looking to improve their car's stance and tire fitment, and it's manufactured right here in Philipsburg, PA-USA.