UMI Performance 3620-R Extended Upper Control Arms for Impala SS

The UMI Performance 3620-R extended length upper control arms are engineered to properly center the rear wheels in the wheel well of the Impala SS. These precision-manufactured control arms come pre-set at 5/8" extended length and feature an additional 1/2" of adjustment range, allowing for perfect rear end alignment without removing the arms from the vehicle.

Key Features:

• CNC machined mounting points from 0.250" mild steel for exact tolerances and accuracy
• DOM tubing construction for superior strength and durability
• 4140 Chrome Moly heat treated 1.000" solid adjuster for maximum strength
• 4140 Chrome Moly tube adaptors for reliable connection points
• Easy on-car adjustments for length and pinion angle settings
• Energy Suspension greaseable polyurethane bushings for quiet, comfortable operation
• Durable glossy powder coat finish for long-lasting protection
• Pre-set at 5/8" extended with additional 1/2" adjustment range

Installation Notes:

• Designed to work with extended length lower control arms
• Depending on ride height variation, a longer driveshaft may be necessary
• All adjustments can be made while control arms remain installed on vehicle

Built with over-engineered components including heavy-duty Chrome Moly steel construction, these upper control arms deliver race-proven performance with street-friendly comfort. The adjustable design allows precise tuning of rear wheel position and pinion angle for optimal handling and tire wear.