Thank you Houston 54. That was the type of information I was looking for. It appeared that measurements are taken from wheel mounting plate to plate or from the backing plate to backing plate. I think I have a lot of work ahead of me trying to find a good match.

If you didn’t skin a knuckle while you were working on your truck, you weren’t working hard enough!

53 5window 1/2 ton
54 3window 1/2 ton