The first thing is to make sure you have a 4-speed console for it to fit under. The C-body consoles were generally "automatic only", if it was a column shift car, there was a trim plate to go in that hole.
As for the base shifter? I suspect a B-body will fit a C-body. The driver's seat will be in the same basic orientation to the shifter handle, I suspect. Shifter rods might be different lengths, though. I also suspect that with the very low volume of C-body 4-speeds (probably more now than every produced by Chrysler), they would have used the B-body shift handle (AND related items underneath). BUT I could be wrong with that. The more unique items, with related production and inventory costs, and possibly "assembly line complexity", the more cost for that particular option on a C-body car, so "less expense is best".
Looking in the Chrysler parts book (or similar Factory Service Manual) is normally a good resource, IF you also understand that the same physical item, with a different finish, or one additional hole drilled in a different location would generate a different part number. Parts illustrations can be problematic as they were done months prior to production, of in similar model years, one illustration carried-over from a prior year . . . "for illustration purposes". But they still might be helpful, as can sales brochures AND the Dealer Order Guide and Color and Trim book.
Hope this might help,
CBODY67
I'll have to consult with the local B-Body expert on that one.
