UMI Performance 3652-R Upper Control Arm for GM B-Body - 1958-1964

The UMI Performance 3652-R is a high-performance rear upper control arm designed specifically for 1958-1964 GM B-Body vehicles. This premium replacement arm features on-car adjustability, allowing you to make pinion angle adjustments without removing the control arm from the vehicle—a significant advantage over competitor designs that require complete removal for adjustments.

Key Features:

• On-car adjustable design using a 4140 heat-treated Chrome-Moly adjuster with left and right-hand threads
• TIG welded construction for maximum strength and durability
• 4140 Chrome-Moly tube adaptors for superior performance
• Greaseable Energy Suspension polyurethane bushings for improved longevity and reduced maintenance
• Durable powder coat finish for corrosion resistance
• Also known as "Banana Arms" due to their distinctive curved design

Performance Benefits:

• Minimizes wheel hop for improved traction
• Enhances cornering stability and handling
• Improves track consistency for racing applications
• Eliminates the need for shims during installation through adjustability
• Direct replacement for worn factory control arms

Important Note: This item is sold individually. Please verify whether your vehicle requires one or two upper control arms. Six-cylinder and most small-block equipped vehicles typically use a 3-link rear suspension (requiring one arm), while big-block vehicles use a 4-link setup (requiring two arms).