Couldn't tell you. I located my mine by the floor contours and the shifter in the boot, and then traced it with a magic marker. Moved in 3/4" and
The hump I used came from a '72 Demon and I had to chisel the floor to get it out. I know the factory hole wasn't very uniform because I had to grind all the spot welds to get the remnants of the old floor off and some of it was a half inch wide, some was two inches wide
