UMI Performance 4033-1-B Front Upper Control Arms with Taller Ball Joints

The UMI Performance 4033-1-B upper control arms are engineered to transform your classic A-Body's handling with a track-tested design that combines increased caster and improved camber characteristics. These precision-built tubular control arms feature relocated ball joint mounting pads that provide up to six degrees of caster without excessive shimming, while the premium 1/2" taller ball joints deliver up to one additional degree of negative camber at full bump travel for enhanced cornering grip and improved steering feel.

Key Features:

• Robust DOM tubular construction with CNC machined gussets and tube radiuses
• TIG welded throughout for superior strength and clean appearance
• Premium 1/2" taller ball joints for improved camber curve through suspension travel
• Relocated ball joint pad design increases caster without requiring excess shims
• UMI-built greaseable Delrin bushings with low deflection and fluted design
• 4140 CrMo cross shafts, CNC machined and zinc plated for durability
• Precision bent tubing on programmable tube bender for consistent quality
• Improved header clearance for better engine bay packaging
• Polyurethane bump stops included
• Durable gloss black or red powder coat finish

Installation & Compatibility:

• Direct bolt-in design compatible with factory or UMI lower A-arms and factory spindles
• May work in conjunction with other brand lower A-arms and aftermarket spindles
• Package includes recommended alignment specifications and detailed installation instructions
• Hardware kit (Part #4003) available separately - includes Grade 8 bolts, washers, and nylock nuts

Important Note: The UMI 4033-1 upper A-arm is designed for factory height or lowered vehicles. Not recommended for use with cargo coils or above-stock-height applications, as the bump stop may contact the cross brace.

Jig-built for precision and designed, engineered, and manufactured with pride in Philipsburg, Pennsylvania, USA. These control arms are ideal for street cars, drag racing, autocross, and Pro-Touring applications where improved handling and steering response are essential.