When you are converting a mach 1 from a 3650 to a t56 you must have these items



T56 Obviously lol
T56 bell housing
T56 drive shaft
T56 trans mount
T56 shifter
And most importantly a GM lock out harness and that would be wired to your brake switch on the switch side.
If you need further info feel free to contact me.


I have a mach 1 that I have converted and I drive everyday