UMI Performance 78-88 G-Body S10 Tubular Front Upper A-Arms Adjustable

If you're building a Pro-Touring machine, setting up for auto-x, or just want a more responsive feel for spirited street driving on your G-Body or S10, these adjustable upper A-arms from UMI Performance are a serious consideration. They're designed to give you precise control over your front suspension geometry, making a noticeable difference in how your car handles corners and maintains stability at speed. These arms are race-proven, even featuring on UMI's own 'Green Machine' test vehicle.

What sets these arms apart is the use of race-quality rod ends, which allow for shim-free camber and caster adjustments. This means you can dial in your alignment with greater accuracy and ease, without the guesswork that often comes with traditional shims. UMI has also relocated the ball joint pad to increase caster, which directly contributes to improved steering feel and stability, especially at higher speeds. The cross shaft to ball joint distance has been shortened, and the arms include 1-inch taller low-friction ball joints to further refine the camber curve during suspension travel. They're constructed from strong 1.250-inch diameter DOM tubing with 0.120-inch wall thickness and feature CNC-machined 4130 CrMo cross shafts that are zinc plated for durability. The TIG welding ensures superior strength and a clean appearance.

This package is designed as a direct bolt-in for factory spindles and works with factory or UMI lower A-arms, simplifying installation. UMI includes recommended alignment specifications and detailed installation instructions to guide you through the process. These arms are manufactured and tested in Philipsburg, PA, USA.