Finishing Touches: Upholstering The Lower Back & Upper Back Seats | 71 72 73 Mustang Fastback. After upholstering the upper rear seat back, I decided to dive right into the upholstering and foaming of the lower back seat. This section was a bit more challenging mainly because I had to produce and sculpt the foam for this seat. The aftermarket does not remanufacture the seat foam for the 71-73 Mustang so you will be at the mercy of saving your old nasty foam (not recommended) or making your own like I did.
The seat upholstery is probably the best I have ever seen, it is provided by Distinctive Industries and is made in the good ol’ U.S.A. I laid down a fresh coat of burlap over the existing seat frame and then laid down a layer of 1″ foam across the entire seat. Next, I cut some 3″ thick density foam for the seat areas (these were square cuts) I then added another layer of 1″ foam across the center hump of the seat. On the ramp of the rear seat, I left the 1″thick foam and cut another piece of 1″ foam for the center upper hump. After laying the upholstery over the seat I installed the wire into the areas provided on the underside of the upholstery. I made some relief cuts to pull the seat lowers thru and hog-ringed them to the frame. Starting from the upper center and working my way around the seat, I hog-ringed the rest of the upholstery down. Batting had to be added to the upper and lower parts of the seat to remove rippling of the upholstery. Check out the photos! How To Upholster the Upper & Lower Back Seats in 71 72 73 Mustang Fastback