UMI Performance 68-72 GM A-Body Rear Control Arm Kit Boxed Lowers

If you're looking to tighten up the rear suspension on your 1968-1972 GM A-Body, this boxed rear control arm kit from UMI Performance is a solid addition. It's built to handle everything from daily driving to spirited track days, helping to reduce suspension flex for more predictable handling and less wheel hop when you put the power down. This kit is designed to fit a range of classic GM vehicles, including popular models like the Chevrolet Chevelle, Pontiac GTO, and Buick Skylark.

The lower control arms are boxed for extra strength and feature reinforced mounting holes that accept a factory-style sway bar, even UMI's own 1-inch version. The upper control arms are made from a stout 1/4-inch thick steel plate, laser-cut for precision and designed to work with various rear end housings. UMI machines these arms using CNC equipment for accuracy and consistency, then assembles them with greaseable polyurethane bushings and zinc-plated steel sleeves. They're MIG welded for durability and finished with a tough powder coat for long-lasting protection. Everything is TIG welded where it counts, like the sway bar mounts, for added reinforcement.

This kit is made in the USA and installs using basic hand tools, typically taking about two hours. You'll get greaseable polyurethane bushings with zinc-plated steel sleeves, ensuring you can keep them lubricated for a long service life. This is a well-built upgrade that makes a noticeable difference in how your classic GM handles.