UMI Performance

Quantity Decrease quantity for UMI 3108-B Modular Adjustable Transmission Crossmember for 1978-1988 G-Body Increase quantity for UMI 3108-B Modular Adjustable Transmission Crossmember for 1978-1988 G-Body

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Product Specification:

SKU:UMI3108-B

MPN: 3108-B

UPC: 3108-B

Weight: 25.3 lb

Inventory: 4

Type: Crossmembers

Description

Upgrade your 1978-1988 G-body with the UMI 3108-B Modular Adjustable Transmission Crossmember. This durable, black powder-coated unit allows for multiple transmission configurations and fine-tunes your driveline angle for optimal performance.
Includes mounting hardware; transmission mount sold separately.

Fits Chevrolet Malibu, Monte Carlo, El Camino, Buick Regal, Oldsmobile Cutlass, and Pontiac Grand Prix. Level up your ride!

Vehicle Fitment

• 1978-1988 Chevrolet Malibu
• 1978-1988 Chevrolet Monte Carlo
• 1978-1988 Chevrolet El Camino
• 1978-1988 Buick Regal
• 1978-1988 Oldsmobile Cutlass Supreme
• 1978-1988 Pontiac Grand Prix

Fitment Notes

• Transmission mount not included - sold separately, with two bushing mount options available depending on transmission type.

Features

• Modular laser-cut tab and slot design allows multiple mounting configurations
• Fine-tunes driveline angle to match your specific transmission and setup
• Supports a wide range of transmissions, including TH350, TH400, 700R4, and Powerglide
• Large cutouts provide clearance for oversized dual exhaust systems
• Built from rectangular tubing and mild steel mounting plates for strength
• Durable black powder coat finish
• Includes new mounting hardware

Specifications

• Construction: Rectangular Steel Tubing
• Mounting Plates: 0.188" Mild Steel
• Finish: Black Powder Coat
• Transmission Bushing Mount: Sold Separately (2 options available)

Included Components

• 1x Modular Adjustable Transmission Crossmember
• Mounting Hardware

Product Description

Swapping transmissions or upgrading a G-body's driveline usually means fighting the factory crossmember's fixed mounting position - it simply wasn't built with adjustability in mind. The UMI 3108-B solves that with a modular, laser-cut tab-and-slot design that offers multiple mounting locations, letting you dial in the correct driveline angle for whatever transmission you're running rather than working around a one-size-fits-all bracket.

Built from rectangular tubing and mild steel mounting plates and finished in black powder coat, it supports everything from a TH350 to a 700R4 or Powerglide, with generous cutouts that leave room for larger dual exhaust systems. Since the transmission mount itself is sold separately, pick the bushing option that matches your transmission before ordering.