When I built my transmission I built a custom shift block that moved the shifter and additional 1 3/16 of an inch forward from the mustang location I also built a shifter to accommodate that move fwd. It also provides a 1-inch offset to the left. At this point I am about one inch farther back from the original factory location based on the 4 speed from my El Camino. Unfortunately the car was wrecked and I didn't measure anything I just saved the parts. I think if I introduce a little more offset to the left it should be fine. If not I will adjust accordingly