UMI Performance 403233-B Tubular Front Control Arms with Delrin Bushings

The UMI Performance 403233-B complete upper and lower A-arm kit transforms your classic A-Body suspension with high-strength tubular construction and precision-engineered components. These bolt-on control arms replace worn factory stamped arms with a modern solution designed for improved handling, caster angle, and tire clearance.

Premium Construction Features:

• TIG welded DOM tubing for superior strength and clean appearance
• CNC machined ball joint holders and tubing radiuses for precision fit
• 4140 Chrome-Moly cross shafts, CNC machined and zinc plated
• Jig-built construction ensures perfect fit and alignment every time
• Designed and manufactured in Philipsburg, PA USA

Performance Upgrades:

• UMI-manufactured greaseable, fluted CNC machined zero-deflection Delrin bushings in upper and lower arms
• Relocated upper ball joint mounting pad increases caster angle for better steering feel
• Angled lower ball joint mount accommodates lowered vehicles and provides extra wheel clearance
• Premium ball joints pre-installed and ready to install
• Polyurethane bump stops and spring isolators included

Complete Kit Includes:

• Upper and lower A-arms fully assembled with bushings and ball joints
• Hardware kit (P/N 4004) with Grade 8 bolts, washers, and zinc plated nylock nuts
• Detailed installation instructions with recommended alignment specifications

This complete A-arm kit is compatible with factory spindles and works with factory springs, lowering springs, and coil-over kits. The precision Delrin bushings deliver smooth suspension action and responsive handling while maintaining ride comfort. Extensively tested on the street, drag strip, and skid pad to ensure durability under all driving conditions.