UMI Performance 4033-R Front Upper Control Arms Tubular A-Arms

Transform your classic A-Body's handling with UMI Performance's 4033-R tubular upper control arms. These track-tested, jig-built performance arms deliver modern muscle car feel through precision engineering and premium materials.

Key Performance Features:

• Relocated ball joint pad permits up to 6 degrees of caster without excessive shimming for improved steering feedback and response
• Greaseable, low-deflection Delrin bushings (UMI designed and CNC machined) provide precise feel and eliminate deflection
• Premium ball joints pre-installed for immediate performance
• 4140 CrMo (chromoly) cross shafts, CNC machined and zinc plated for maximum strength and corrosion resistance
• Robust DOM tubular design bent on programmable tube bender for consistency and improved header clearance
• TIG welded construction delivers superior strength with clean, professional appearance
• CNC machined ball joint mounts and tubing radiuses ensure precise fitment

What's Included:

• Pair of upper A-arms with gloss red powder coat finish
• Polyurethane bump stops
• Recommended alignment specifications
• Detailed installation instructions

Fitment & Compatibility:

• Direct bolt-in design compatible with factory or UMI lower A-arms and factory spindles
• May work in conjunction with other lower A-arms and aftermarket spindles
• Designed for factory height or lowered vehicles (not recommended for cargo coils or above-stock height applications due to potential bump stop contact with cross brace)
• Hardware kit available separately (Part #4003) includes Grade 8 mounting hardware

Designed and manufactured in the USA, these control arms are ideal for street cars, drag racing, autocross, and Pro-Touring builds. For maximum performance gains, consider upgrading to Part #4033-1, which features a 1/2" taller ball joint for improved camber curve and flatter contact patch during cornering.