63 Dodge Dart, now let me see;)
Now that I see your pics, I realized that I remembered it wrong. I thought it was passenger side top bolt, but it was the top drivers side one. On some car, I remember a half moon type clearance notch in the floor pan/firewall pinch weld right about where that bolt would be. It's a later A body or an E body more than likely, or maybe all cars after a certain point of dealer mechanics griping about no room to get to the bolt...lol.
On the shifter linkage, the 1-2 & 3-4 levers go above the torsion bar crossmember, and the R lever with the dog leg in it goes underneath it. The factory left the floor pan metal on top of the crossmember just like you did.
:thumbsup: