LS Swap Trans Mount 67-72 GMC Truck/SUV

The TRANS-DAPT LS Swap Transmission Mount for 1967–72 GMC trucks and SUVs is a bolt-on steel crossmember engineered to support LS engine swaps with both automatic and manual transmissions. This black-painted mounting solution eliminates the guesswork in fabricating a transmission mount during a modern engine transplant, providing a direct fit for classic GM full-size trucks without requiring extensive welding or modification to the original frame structure.

Weighing 7.3 pounds and constructed from steel, the mount delivers the rigidity required to support an LS powerplant while maintaining proper transmission alignment and drivetrain geometry. The bolt-on design means installation requires only fasteners—no cutting or welding of the factory frame rails. This approach preserves the structural integrity of the vehicle and makes future modifications or removal straightforward. Compatible with multiple transmission options, the mount accommodates the flexibility modern swap builders need when pairing LS engines with either automatic transmissions for street cruising or manual gearboxes for driver engagement.

This mount is intended for experienced builders and shops performing LS engine conversions on first-generation C/K trucks. The 1967–72 platform remains a popular base for restomod builds, and an LS swap delivers modern reliability, fuel efficiency, and performance without sacrificing the classic lines of these trucks. The TRANS-DAPT solution reduces engineering time and labor costs compared to fabricating a custom mount from tube stock, making it a practical choice for both professional shops and dedicated enthusiasts building their own drivetrains.

LS swaps into classic trucks have become the standard approach to modernization across the hot rod and truck modification community. Purpose-built components like transmission mounts ensure proper engine bay layout, prevent transmission movement under acceleration or braking, and maintain correct driveshaft angles for long-term durability. TRANS-DAPT has established itself as a manufacturer of LS-swap infrastructure, and this crossmember reflects the engineering practices necessary to support significant power and torque in a vintage platform.