Our new to us 79, 1600 Bigfoot
got the door rebuilt today.
The bottom left hand corner was dragging on the bottom. When I took the door off I found the whole bottom was rotted out. I rebuilt the frame and put the door back together only to find it was still dragging on that corner.
I ended up pulling the whole door frame out and squaring it up like you would do with a house door. It was out of square by almost 3/8 of an inch.
I was happy there was no rot in any of the framing.