UMI Performance 1978-1988 GM G-Body Modular Adjustable Transmission Crossmember - Black (3108-B)

Fits 1978-1988 GM G-Body vehicles including the Buick Regal, Chevrolet El Camino, Malibu, Monte Carlo, GMC Caballero, Oldsmobile Cutlass, and Pontiac Bonneville/Grand Prix.

The UMI Performance Modular Adjustable Transmission Crossmember provides a versatile mounting solution for G-Body owners performing transmission swaps or seeking better driveline geometry. Constructed with a laser-cut tab and slot design, this system provides high structural integrity without excessive weight. The modular architecture includes a 5-position CNC-machined billet aluminum transmission mount, allowing for precision adjustment of the driveline angle to prevent vibration and ensure proper alignment.

Engineering for performance clearance, this crossmember features large cutouts specifically designed to accommodate oversized dual exhaust systems. For early production vehicles (1978-1981), UMI includes a CNC-machined billet aluminum frame spacer to ensure a direct-fit installation. This system simplifies the mounting of various transmission models while maintaining the rigidity required for high-performance street and track use.

• Laser-cut tab and slot design for superior strength-to-weight ratio
• 5-position CNC-machined billet aluminum transmission mount for adjustable driveline angles
• Includes CNC-machined billet aluminum spacer for 1978-1981 frame compatibility
• Designed with large cutouts for oversized dual exhaust clearance
• Total weight: 22 lbs
• Finish: Durable Black powder coat
• Transmission bushing mounts sold separately
• Manufacturer Part Number: 3108-B