UMI Performance 3019-B Adjustable Rear Upper Control Arms GM G-Body 12-Bolt Swap Black

The UMI Performance 3019-B adjustable rear upper control arms are specifically engineered for installing a 1964-1972 GM A-Body 10-bolt or 12-bolt rear end into a 1978-1988 GM G-Body chassis. These control arms are built at the correct angle to properly attach to the G-Body chassis and A-Body rear end mounting ears, making them essential for any rear end swap project.

Key Features:

• TIG welded construction using DOM steel tubing for maximum strength and durability
• On-car adjustable design with aircraft quality 4140 Chrome Moly heat-treated adjusters
• QA1 spherical bearing rod ends allow free rear end movement for improved handling
• CNC machined 6061 aluminum step bushings for precision fit
• 4140 Chrome Moly tube adaptors ensure thread durability under extreme loads
• Durable black powder coat finish for corrosion resistance and appearance
• Precision CNC machining maintains tight tolerances throughout
• North American sourced steel and components, 100% made in USA

Using factory control arms during a rear end swap causes drastic rear end bind and incorrect driveline angle, leading to traction loss, vibrations, and unsafe handling. The UMI 3019-B control arms eliminate these issues by providing proper geometry and adjustability to set the correct pinion angle. The spherical bearing rod ends allow free rear end movement, making them ideal for high-performance handling, autocross, road racing, and drag racing applications.

This product includes one pair of adjustable upper control arms with black powder coat finish. Sold as a pair for both driver and passenger sides.