UMI Performance 3657-R - 65-66 GM B-Body Adjustable Upper Control/Trailing Arm

UMI Performance 3657-R - 65-66 GM B-Body Adjustable Upper Control/Trailing Arm

UMI adjustable B-Body control arm cuts wheel hop & allows pinion tuning.

UMI’s on-car adjustable rear control arm for GM B-Body replaces factory arms to cut wheel hop and sharpen cornering. Features greaseable bushings, TIG-welded strength, and a 4140 Chromoly adjuster. Fits 3-link or 4-link setups.

UMI Performance offers an on-car adjustable control arm for the rear of the GM B-Body vehicle. This control arm is a direct replacement for the factory arms and helps minimize wheel hop and improve cornering. It allows for easy pinion angle adjustments without the need to remove it from the vehicle. The control arm features grease-able bushings, TIG welded construction, and a 4140 heat treated CrMo adjuster. This item is sold individually, so please verify how many you need for your vehicle. It is compatible with both 3-link and 4-link rear suspension set-ups.

• On-Car Adjustability using a 4140 Heat Treated Adjuster
• 4140 CrMo Tube Adapters
• TIG Welded Construction
• Grease-able Polyurethane Bushings
• Durable Powder Coat Finish