1965 barracuda seat upholstery kit install difficulty

Standard rear benches are fairly Easy to do. Not sure about a folding bench back.

Bucket bottoms are easy as well.

My 73 bucket backs were difficult as they had listing wires in the front.

Those low backs look a lot easier.

Hog rings can be had a Tractor Supply. Hog ring pliers at Harbor Freight.

I used 2 pair of channel locks and a welding vise grip (with the wide jaws) to pull the material tight while I hog ringed it.