I couldn't decide exactly where to mount the Hurst floor shifter untill I looked at the underside of the floor. The torsion bar crossmember decided it for me. The base of the shifter just clears the forward and rearward arch of the crossmember and I mean just. I installed the bolts from the bottom up so they would be like studs sticking up for ease of installation, maintenance and locating the holes through the carpet too. The shift cable grommet required a 1.5" hole to be opened.
Common sense, the least common of all the senses. Mom.
For fear of ridicule, society stifles creativity. Ricky Valdes