At some point the original seat tracks were removed from the driver's side bucket seat and replaced with incorrect "A" body style tracks. The passenger side is correct and uses the factory studs and welded in nuts on the floorpan. The drivers has 4 new holes drilled in the floor to make the tracks on the seat work. I've included pics from the '67 Body Manual, "B" and "C" body tracks should work and I suspect '68 as well. I made a couple square tube spacers to get the seat close to the correct height but, I'd rather have the correct brackets. Thanks and let me know if you have anything.
