You'll probably have to make them yourself or have them made. I have been looking since I got my '65 Fairlane 500 wagon in 1989 and have yet to see a used, NOS, or repop cushion set for our Fairlanes anywhere.
I also mounted some seat belts back there so my kids can ride back there sometimes when "cruising" or at car cruises
(like Woodward). Had to add 3 seat belts to the rear bench too since mine didn't come with any and having 2 kids and a 3rd on the way the car can be pretty crowded but they all love to ride in the old cars more than our new cars. That makes me happy
Thankx - that is what I expected. I got a 63 squire woody and am getting it road worthy for my family - Ill have to do the same seat belts you did - aint nothin cooler than riding in the third seat looking back! Nice cars and kids!