UMI Performance 3651-B Upper Control Arm Rear Suspension

The UMI Performance 3651-B is a high-performance rear upper control arm designed to replace weak factory stamped steel arms on GM A-Body, G-Body, and similar vehicles. Built from 1.750-inch diameter x 0.120-inch wall DOM (Drawn Over Mandrel) mild steel tubing, this control arm delivers exceptional strength and durability for street, strip, or restoration applications.

Key Features:

• 1.750" x 0.120" DOM mild steel tubing construction for maximum strength
• CNC-machined bushing holders ensure precise fitment and alignment
• TIG welded construction for superior joint strength and durability
• Greaseable Energy Suspension polyurethane bushings reduce deflection and improve traction
• Durable powder coat finish resists corrosion and provides long-lasting appearance
• Direct bolt-on replacement requiring no modifications
• Also known as "banana arms" due to their curved shape

Upgrading your rear control arms is one of the most effective suspension modifications you can make. Factory control arms suffer from bushing deflection and weak stamped construction that leads to traction loss and poor handling. The UMI 3651-B eliminates these problems with rigid tubing construction and polyurethane bushings that minimize wheel hop, improve cornering stability, and deliver consistent performance at the track.

Important: Price is per arm. Verify whether your vehicle uses a 3-link or 4-link rear suspension setup. Six-cylinder and most small-block vehicles typically use a 3-link configuration with one upper control arm, while big-block vehicles use a 4-link setup with two upper control arms.