Thanks David, that's great advice for any installer! I'll go one step further from my wishlist and that's being able to mount the seat to a table with locking casters so you can spin it around easily and then lock it in place when you need it stable.
The grey flaps help hold the seat foam in place while you're assembling everything. In some applications, like across the top of buckets, the flaps help hide the sharper metal edges of the frame.
@Dirtymike691 The backrest is the same as the cushion in these types of jobs. Just lay it flat to work on, install any backing you plan to you, install the foam (we use hog rings to hold it in place) and then cover. The backrest upholstery covers the front and rear sides of the backrest.
@Dirtymike691 No, the only gluing that goes on is sometimes on the back side of the backrests. If you have denim sheets attached to the foam, then it's meant to be glued. In most cases its unnecessary, but it can't really hurt as long as you've got your hog-ring trenches lined up.
Please see our video on rear seat recovering. The large sheets of high density foam are what we use and recommend for rear seats or 4-door front seats.
While we do manufacture seat upholstery we do not manufacture anything for a 1953 Chevy. There is a company in New Jersey called CARS Inc that might be able to help you.
Do you make your own seat covers? If yes,are you able to make me an offer for a front bench seat cover for my 53 Chevy Handyman and to send it to France? I can send you pics Regards