Don't know if yours has carpet under the seat or not. If not, you can easily look for the original holes for the bench seat. I just put new carpet in my 63 and I have the original bench seat. There are 8 holes drilled in the metal under he seat. There are four brackets on the seat frame where it attaches o the floor; two in front and two in back on opposite sides that hold the bench down. The holes for those should already be drilled in the metal if they didn't change it (metal floor) when they put in the bucket seats. Just find those and most of the bench seats ('62-'66) will match up. But before you buy one, if you find and measure those holes, or trace a template with a piece of paper and a pencil, you can take it with you and see if it matches the brackets on the bench you may find so you don't waste money on the wrong configuration. Hope this helps.
