UMI Performance 403233-1-R Front Upper & Lower Tubular A-Arm Control Arm Kit

Upgrade your classic A-Body muscle car's handling and performance with the UMI Performance 403233-1-R complete tubular front control arm kit. This comprehensive kit replaces worn factory stamped A-arms with high-strength tubular construction featuring premium components throughout.

Upper Control Arms Feature:

• Relocated upper ball joint mounting pad for improved caster and steering feel without excessive shims
• 1/2" taller upper ball joints for enhanced camber performance
• 4140 chrome-moly cross shafts, CNC machined and zinc plated for durability
• Greaseable, fluted CNC machined zero-deflection Delrin bushings manufactured in-house by UMI
• TIG welded DOM tubing for superior strength and clean appearance

Lower Control Arms Feature:

• Stock geometry tubular construction with slightly angled ball joint mounts for lowered vehicle compatibility
• Polyurethane spring isolators for improved ride comfort
• Greaseable Delrin bushings for precise handling and smooth suspension motion
• Enhanced tire clearance design
• CNC machined ball joint holders and tube radiuses

Complete Kit Includes:

• Upper and lower control arms fully assembled with premium ball joints installed
• Polyurethane bump stops pre-installed
• Recommended alignment specifications and detailed installation instructions
• Optional Hardware Kit P/N 4004 available separately with Grade 8 bolts, washers, and zinc-plated nylon lock nuts

Each kit is jig-built to maintain accuracy for perfect fitment every time. Compatible with factory spindles, drop spindles, factory springs, lowering springs, and coilover kits including popular QA1 setups. All components are designed, manufactured, and assembled with pride in Philipsburg, Pennsylvania, USA. Available in durable glossy red or black powder coat finish. Simply bolt-on and go—no welding or fabrication required.