About this product
- Our patent-pending tab-and-slot version of the TH400 Swap Block® Transmission Mock Up Block provides accurate transmission mounting and yoke positions.
- This unique design is lightweight and comes disassembled for ease of shipping and storage.
- One tool accomplishes accurate placement of a TH400 transmission found in GM cars and trucks from 1964-1990.
- This mock up Transmission has a rear mount plate designed around the short tail TH400, but if a long tail is needed, you can bolt a tail shaft to the rearmost upright plate.
- Easily positioned by hand, there is no need to bench-press a heavy transmission into place for fitment and fabrication of Crossmember, etc.
- Save time and money and work more safely.
- Durable steel construction resists heat from welding, so unlike foam blocks, custom crossmembers can be fabricated close to the block.
Description supplied by G Force Performance Products through its current Shopify listing. Product, performance, and health claims are the seller’s and have not been independently verified by StorkScout.





