UMI Performance 78-88 G-Body S10 Tubular Front Upper & Lower A-Arms Poly

If you're looking to significantly improve the handling and steering response on your 1978-2004 G-Body or S10 truck, this tubular front upper and lower A-arm kit from UMI Performance is a solid choice. These arms replace the factory stamped steel components with a much stronger, well-built tubular design. They're designed to work with a wide range of vehicles, including popular models like the Chevrolet S10, Monte Carlo, and Buick Regal, offering a substantial upgrade over worn-out stock parts.

This kit features a combination of durable materials and thoughtful design. The lower A-arms use greaseable polyurethane bushings for a smooth suspension motion and precise handling, while the ball joint mount is slightly angled to provide extra clearance for lowered vehicles. The upper A-arms come assembled with UMI-designed Delrin bushings and billet CrMo cross shafts, and their mounting pad is relocated to allow for increased caster without needing excessive shims. Both sets of arms are jig-built for accuracy, come pre-assembled with premium ball joints and polyurethane bump stops, and feature TIG welded DOM tubing for strength and a clean look. The kit also includes recommended alignment specifications and detailed installation instructions to help you get the most out of your new suspension.

This kit is designed to bolt right on and work with factory springs, lowering springs, or coil-over kits like the QA1 setup. The finish is a tough red or black powder coat to keep them looking good, and the entire package offers about an 8lb weight savings over the stock arms. For even more advanced geometry changes, consider kit #383133-2 which includes a taller ball joint for an improved camber curve.