1973-1991 GM Square Body Duramax HD Engine Swap Mount Kit (WCF100173)

Heavy-duty engine mount kit for dropping a 2001-2016 LB7, LLY, LBZ, LMM or LML Duramax into a 1973-1991 GM 3/4-ton or 1-ton square body chassis. Wehrli built these for their own square body swaps, so the engine lands in a proven location and the mounts handle high-horsepower use with polyurethane bushings.

Laser cut, CNC bent and welded steel, epoxy primed for corrosion resistance and finished in semi-gloss black powder coat. High-grade hardware is included. Pair it with the matching transmission crossmember kit (WCF100177) for an Allison or ZF6.

Part Number: WCF100173

• Positions a 2001-2016 LB7/LLY/LBZ/LMM/LML Duramax into a 1973-1991 3/4-ton or 1-ton square body chassis
• Left and right swap mounts
• Laser cut, CNC bent, welded steel construction
• Polyurethane bushings
• High-grade hardware included
• Epoxy primer base coat for corrosion resistance
• Semi-gloss black powder coat
• Made in USA

• 3/4-ton and 1-ton square body chassis only. Confirm your chassis before ordering.
• Transmission crossmember for the swap: WCF100177.

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