65 coronet crossmember newer tranny

I have a 65 coronet and it came with no crossmember and I plan to install a 4 speed. The transmissions I have are a 67 and 70 hemi 4 speed (18 spline). I have been told the transmission mount is in a different place on the earlier transmissions. Will I need the 65 auto or 65 manual crossmember?

65 auto x member and the conversion mount from schumacher or brewer

Yep, I put a later transmission in my '63 B-body Using the Schumacher (imperial services) mount and everything bolted up perfectly!