'65 Dart - Shift tunnel placement for 4 spd OD swap

Get the transmission in the car, along with the shifter mounting bracket. Once these are in, start with about a 3" hole based on the center line of the shifter. Once you have the initial hole, start trimming in small increments checking the shifter operation, as well as the placement for the shifter hump. Slow and steady makes for a neater and better installation.