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

When you're looking to dial in your suspension for serious performance driving, the UMI Performance 3056-2-B adjustable upper A-arms are what you get. This package includes a pair of tubular front upper A-arms, complete with race-quality rod ends for shim-free camber and caster adjustments. You also get ½” taller ball joints, designed to improve the camber curve for better cornering grip, and polyurethane bump stops. These arms are built to bolt directly onto factory or UMI lower A-arms and work with factory spindles, making them a direct fit for a wide range of vehicles including many G-Body and S10 models from the late 70s through the early 2000s.

These A-arms are constructed from 1.250” diameter DOM tubing with a wall thickness of 0.120” for solid strength. The cross shafts are made from 4130 CrMo steel, CNC machined, and zinc plated for corrosion resistance. UMI relocated the ball joint mounting pad to increase caster, which helps improve stability and steering feel without needing excessive shims. The TIG welding ensures superior strength and a clean appearance, while the CNC laser-cut ball joint pad adds precision. This design is ideal for Pro-Touring, road racing, auto-x, and spirited street driving.

UMI Performance designs, tests, and manufactures these A-arms in Philipsburg, PA, USA. The package includes recommended alignment specifications and detailed installation instructions to guide you through the process. These arms are designed to work with factory spindles and may also work with other lower A-arms or spindles, so feel free to contact UMI if you have specific setup questions.