UMI Performance 403133-1-R Front Upper & Lower Control Arm Kit Red

Transform your classic A-Body into a modern handling machine with the UMI Performance 403133-1-R complete tubular control arm kit. This bolt-on front suspension upgrade replaces worn factory stamped steel arms with precision-engineered tubular construction featuring premium materials and advanced geometry for superior handling, improved tire life, and exceptional ride quality.

Upper Control Arms Feature:

• UMI-manufactured greaseable and fluted CNC machined zero-deflection Delrin bushings for smooth operation and minimal bind
• Relocated upper ball joint mounting pad to increase caster without excessive shims for better steering feel and stability
• Premium 1/2" taller ball joints for improved camber curve throughout suspension travel
• 4140 chromoly cross shafts, CNC machined and zinc plated for durability
• Billet CrMo construction with TIG welded DOM tubing

Lower Control Arms Feature:

• Greaseable and fluted polyurethane bushings for precision handling with a smooth ride
• Polyurethane spring isolators and bump stops pre-installed
• Ball joint mount angled slightly from stock to accommodate lowered vehicles with additional tire clearance
• Stock geometry design maintains proper suspension travel
• Premium ball joints pre-installed and ready to bolt on

Premium Construction:

• Jig-built for accuracy and perfect fitment every time
• TIG welded at all critical areas for superior strength and clean appearance
• CNC machined ball joint holders and tubing radiuses
• Durable glossy red powder coat finish resists corrosion and looks great

Complete Kit Includes:

• Fully assembled upper and lower control arms with ball joints installed
• Recommended alignment specifications for optimal handling and tire wear
• Detailed installation instructions

Compatible with factory spindles, drop spindles, factory springs, lowering springs, and coilover kits including popular QA1 setups. Note: The 4033 upper control arm is designed for factory height or lowered applications; not recommended for cargo coils or above-stock-height vehicles as bump stops may contact the cross brace. Separate hardware kit (P/N 4004) available for complete installation with Grade 8 fasteners.