68-72 GM A-Body Rear Upper Control Arm

The 68-72 GM A-Body Rear Upper Control Arm from UMI Performance is a critical suspension component designed for enthusiasts and mechanics building or restoring classic Chevelle, Malibu, and Cutlass platforms. This control arm is essential for anyone upgrading their rear suspension geometry, whether you're pursuing street performance, autocross handling, or a complete frame-off restoration.

The rear upper control arm controls wheel alignment angles and rear axle housing movement, making it fundamental to both safety and predictable cornering behavior in first-generation A-Body muscle cars. UMI Performance's 4016-B control arm features precision-engineered construction that corrects factory alignment compliance and accommodates modern suspension tuning. The component's design addresses the original equipment's limitations, reducing rear axle housing deflection under acceleration and cornering loads while improving camber control across the suspension travel range.

This rear upper control arm is ideal for 1968–1972 GM A-Body applications, including Chevrolet Chevelle, Pontiac Lemans, and Oldsmobile Cutlass. At 7.5 lbs with dimensions of 6.5 x 4.7 x 14.1 inches, this control arm integrates seamlessly into OEM and upgrade suspension systems, offering superior rigidity compared to aging original parts. The engineering delivers measurable improvements in tire wear patterns, predictability during hard cornering, and overall rear-end stability—critical factors for any performance-oriented build.