I did this same swap. It's not the mount that's the problem, it's the bracket that is different (what the mount bolts into). You will need to cut the bracket off (torch/grinder?), order the correct one for the manual tranny car and weld it on in the correct location. I was pissed when I figured this out... my project went from 1 weekend to about 1.5 months! Anyway that's it, other than that things are cool.