UMI Performance 1062-B Upper Control Arm Mustang Rear Suspension - S197

The UMI Performance 1062-B is a heavy-duty rear upper control arm designed to replace the factory stamped control arm on S197 Mustang chassis vehicles. This performance upgrade eliminates wheel hop and dramatically improves traction by replacing the flex-prone factory components with a precision-engineered spherical bearing design.

Key Features:

• Spherical Roto-Joint bearings provide 28 degrees of unrestricted movement for bind-free suspension articulation
• Greaseable delrin race absorbs shock and road noise while maintaining precision handling
• 4140 chromoly heat-treated threaded tube adaptors for exceptional strength
• On-car adjustable using chromoly heat-treated adjuster sleeve
• CNC-machined mounting plates from 0.250-inch thick mild steel
• Fully TIG welded construction for superior strength and durability
• Durable powder coat finish for corrosion resistance
• Direct bolt-on installation using OEM hardware
• Ships fully assembled and ready to install

Performance Benefits:

The S197 Mustang's 3-link rear suspension with panhard bar suffers from factory component flex and rubber bushing deflection under hard loads, leading to poor traction and unpredictable handling. This upper control arm solves these issues by providing a rigid, bind-free connection that allows the suspension to work correctly. The Roto-Joint design delivers race-proven performance for autocross and road racing while remaining completely streetable with minimal noise and vibration.

Compatibility Note:

UMI offers a separate Part #1058 spacer kit to address the factory oversized chassis mount hole issue (16mm vs. 14mm bolt). This stepped spacer eliminates clunking and bolt shift during acceleration and braking by properly centering the mounting bolt.