Bench seat reupholstery

I used hog rings but I used zip ties to tie the springs together on the back side to give them more strength. They're probably worn out and will feel a million times better if you use a bunch of zip ties to tie them all together. It also helps with wrinkles afterward because if you sit on the seat for a while with worn springs, it'll make the vinyl on the bottom part of the seat look loose compared to the rest of the seat.

There's really not much to upholstery. It helps to have a helping hand here and there but you basically just get your foam in place and then put the vinyl on top inside out and fold it over like a fitted sheet on a bed. Then just make sure you're all square when you start hog ringing. Flip the seat over and check for wrinkles as you go so you know whether to pull the next portion a little tighter or not. I usually start in the center of the seat and hog ring left and right equally to ensure I don't get one corner of the seat so tight to where the other corner doesn't fit properly.

I've never had to use a heat gun but it can get pretty hot where I live. I just install the seat in the car and leave it outside with the windows rolled up on a warm day for a couple hours and it takes the wrinkles out. But honestly you shouldn't have all that many wrinkles when you're done with it anyway. If you do, then you probably don't have enough foam or you didn't have the vinyl pulled tight enough when you hog ringed. I'll use my body weight to compress the frame and springs down when hog ringing and it keeps the vinyl tight when the frame decompresses.