AMD Transmission Tunnel Perimeter Frame Dodge | Plymouth E-Body 1970-1974 | X428-1570-1

USCT Motorsports Transmission Tunnel Perimeter Frame for installing a larger transmission into a 1970 - 1974 Mopar E Body, Dodge Challenger and Plymouth Cuda. Gen3 Hemi swaps are becoming more popular and with the swap, comes the desire to run late model overdrive automatic transmissions. The perimeter frame replaces the factory restrictive floor/transmission hump and adds the structure needed when removing the center of the factory torsion bar cross member and makes room for larger automatic and overdrive transmissions. This has been tested to fit with the Chrysler NAG1 5 speed, HP70 8