A100 Early / Late Seat Mounts

Is there a difference between the seats mounts for 65 and 69 seat brackets? I have set of seats from a 65 but when I put them I the 69 PU, they are about 1.5" too far inboard.

I might have to redrill the seat frame holes so everything lines up.

Thanks

The early ones have a pin in the seat bottom that has a spring catch in the seat base, the seat can pivot forward by just pulling up. The later ones have 4 pins that you can pivot the seat forward by removing the back pins or remove the seat entirely by taking all 4 pins out. The front seat brackets are in the same location on both ,the back ones are different between the years and welded in a slightly different position. The early seats you only have to remove the front pins to take the seat out.

Thanks, Dan, I got the pins figured out, but the seat brackets seem to be off by about 1.5" side to side. The driver's seat is hitting the engine cover and has 2" between the seat at the door frame.

The set I put in my 68 where from a 65. I used the rear seat brackets from the 65. We did have to position them slightly different when we welded them in but did nothing to the seat tracks itself. Was there a change in 69 ?