Back Seat Width

ok so I just happen to have the backseat out of my 67 notch which would be the same. The seat back at the package shelf is 52 inches and grows to 54 at the outer welp beads.
The heigth and depth is what will get you if your looking at a seat from say... a Duster.
So the seat back is 24 inches tall and the seat bottom is 18 inches deep. Cheers