UMI Performance 64-72 A-Body Lower Control Arms- Poly/Roto-Joint

If you're looking to improve the handling and ride quality on your classic A-Body, these lower control arms from UMI Performance are a solid option. They're built to replace the stock arms on a wide range of vehicles, including popular models like the Chevrolet Chevelle, Buick Skylark, and Oldsmobile Cutlass, from 1964 through 1972. These aren't just beefier versions of the original parts; they incorporate UMI's Roto-Joint technology to allow for smoother suspension articulation, which translates to better control and a more comfortable ride, even when you're pushing the car a bit.

What sets these apart is the combination of a polyurethane bushing on the chassis side and a Roto-Joint on the rear end side. The polyurethane bushings are softer, helping to absorb road noise and impacts before they reach the cabin, keeping things quiet and comfortable for daily driving. Meanwhile, the Roto-Joint, with its greaseable Delrin race, offers a much wider range of unrestricted movement—28 degrees total—compared to stock rubber or even standard aftermarket poly bushings. This bind-free operation is crucial for high-performance driving like autocross or road racing, but it also makes a noticeable difference in everyday handling by allowing the suspension to work as intended. The arms themselves are constructed from strong 1.500" x 0.120" DOM mild steel tubing and are fully TIG welded for durability. They also include reinforced, TIG-welded sway bar mounting points, ready for your stock or aftermarket sway bar.

These control arms come fully assembled and ready to bolt on, using your vehicle's original hardware. The durable powder coat finish not only looks good but also helps protect the steel construction. They're designed to be a low-maintenance setup, with all bushing ends and Roto-Joints being greaseable, making them a practical choice for both street cruisers and track-day enthusiasts.