Upper A-Arm

Improve handling and fulfill your G-Body's built-in performance potential by installing our P/N 3033-1 tubular upper a-arms. The relocated ball joint plate on these a-arms permits up to six degrees of positive caster without excessive shimming. Expect improved steering feedback courtesy of increased caster and a precise feel due to the UMI built Delrin bushings. Features include greaseable, low deflection UMI designed and manufactured Delrin bushings, CrMo cross shafts, premium ball joints and polyurethane bump stops. These track-tested, jig built DOM a-arms are supplied with a durable gloss red or black powder coat finish which guarantees your performance parts stay beautiful on your street car, drag car, autocrosser or Pro-touring machine. For even more performance, check out the P/N 3033-2 which adds the benefit of a ½” taller ball joint for an improved camber curve and flatter contact patch.

Additional Information

Upgrade your G-body/S10 with UMI 3033 tubular upper a-arms for added caster, better camber curve, and sharper steering. Includes Delrin bushings, chromoly shafts, and premium ball joints. Track tested and proven.

• 4140 CrMo cross shafts, CNC machined & zinc plated
• CNC machined ball joint mount & tubing radiuses
• Designed & Manufactured in Philipsburg, PA – USA
• Direct bolt-in compatible with factory or UMI lower a-arm & factory spindle
• May also work in conjunction with other lower a-arms and/or spindles
• Package includes recommended alignment specs & detailed installation instructions
• Polyurethane bump stops included
• Premium ball joints installed
• Relocated ball joint pad for increased caster without excess shims
• Robust tubular design bent on a programmable tube bender
• TIG welded for superior strength & clean looks
• UMI built, greaseable & fluted CNC machined no deflection Delrin bushings

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information