UMI Performance 78-88 GM G-Body Rear Control Arm Kit Fully Boxed Lowers

If you're looking to improve the rear suspension on your classic GM G-Body, like a Buick Regal, Chevy Monte Carlo, or Pontiac Grand Prix, this rear control arm kit from UMI Performance is a solid choice. Stock control arms can allow for a lot of flex and movement, leading to traction loss and that annoying wheel hop when you accelerate hard. This kit replaces both your upper and lower rear control arms with well-built, fixed-length units that match factory specifications, but with added strength and improved geometry to keep your rear end planted.

The lower control arms in this kit are fully boxed for extra rigidity, which is key to handling the forces of acceleration and braking without flexing. UMI also reinforced the sway bar mounting points on the lower arms, so you can confidently use your stock or aftermarket sway bar. The upper control arms are tubular, offering a good balance of strength and weight. By reducing unwanted movement in the rear suspension, you'll notice improved stability and a more direct feel when you put the power down.

This kit includes a set of boxed lower control arms and a set of tubular upper control arms. It's designed to be a direct replacement for your factory arms, making installation more straightforward. If you're aiming for better handling and a more predictable rear suspension response on your 1978-1988 GM G-Body, this kit is a significant upgrade.