1962 valiant shifter change

Bellhousing is an older universal fit.
Lined up perfect.during in stall and the starter is the original to car. As everything else on the car. All except paint and tires is what she was born with. Yet again fingers crossed, again.
Could it be the mounting stud and hole for starter may not match? Man I checked the original housing to the one on now and I couldn't tell any difference.
ZoomZoom,
MLP