UMI Performance 3662-R Upper Control Arm for GM B-Body - 67-70

The UMI Performance 3662-R is a premium replacement upper control arm designed specifically for 1967-1970 GM B-Body vehicles. This direct-fit control arm offers on-car adjustability, allowing you to fine-tune your pinion angle without removing the arm from the vehicle—a significant advantage over competitor designs that require disassembly for adjustments.

Key Features:

• On-car adjustable design using 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 longevity and reduced maintenance
• Durable powder coat finish for corrosion resistance
• Eliminates need for shims during installation through precise adjustment

Performance Benefits:

• Minimizes wheel hop for improved traction
• Enhances cornering stability and handling
• Improves track consistency for racing applications
• Replaces worn factory control arms with a stronger, adjustable solution

Important Application Note: This item is sold individually. Six-cylinder and most small-block equipped B-Body vehicles use a 3-link rear suspension requiring one upper control arm, while big-block vehicles use a 4-link setup requiring two upper control arms. Please verify your vehicle's configuration before ordering.

Adjustment is simple: loosen two jam nuts and turn the Chrome-Moly adjuster to achieve your desired pinion angle—all while the control arm remains installed on the vehicle.