The previous owner of the '72 F100 that I once had literally mangled the steering column. His fix was to install a tall shifter in the floor and while it worked fairly well it was an adventure to get it into drive. I solved the problem by installing a set of buckets and made a console to fit between them. I made it in two pieces so servicing would be easier and in the piece that sat forward of the seats I mounted the auto shifter that had been in my Mustang. Some c6's were made to accept a floor mounted shifter but mine wasn't. The bosses were in the tranny and all I did was to drill them and mount a neutral safety switch from a '68 Mustang. It was still working well when I sold the truck.