If you want to put a later 904 with a slip yoke tailshaft in it, you need to use brackets from a later A body to mount a floor shifter. I’m doing the same thing to my 65 Barracuda, but plan to just use an aftermarket shifter that resembles the original that’s in it. I have the cable shift 904 that came in it, but have no interest in fooling with it.
Would a quick silver be an option? I don’t care much about factory looking shifter. I just want something simple to install. I have no trans and no motor but it’s a slant 6 auto car. I was hoping I could use the mounts that are welded to the tunnel.
