Any extra seatbelt mounting holes on a 70 Duster

As I read in another thread, the outer rails have a thicker piece of steel coming down from the side so that the seats are not just bolted to the floorpan alone. For the bench seat that my Duster came with only the 2 rails are used near the doors. But there is a predrilled hole in the extra piece of steel for buckets and it was only punched through the floorpan if you had bucket seats from the factory. So I just drilled these holes through the floor pan and was half done for holes for my buckets! I assumed that these holes would be aligned right for all A body buckets, and they seem pretty good.

I only had the rails from the new 74 buckets so I used them. As you said though they are different from what I should have had for a 70. I didn't realize this was due to the catalytic converter in 1974!!!! it was fine on the passenger side for being level but the driver's seat right rail was very short. So I had to use my own spacer system on the right rail to raise it about 2 inches between the bottom of the seat and the rail. It worked! Thanks for the explanation as to why the rail didn't just bolt in.

the Big E