OK- Multi- part issue. I have a 75 CJ 5 with a 2 1/2 inches lift kit and three quarters of an inch of shackle lift and an inch of body lift. It's a fiberglass tub so I think it actually rides a little higher than that. I'm working on gaining some additional stability which I understand is a fool's errand but whatever. Right now I have 31x10.5 15's which fit fine with just the body lift and which now look like matchbox wheels after the lift and shackles. 4.10 gears. The 8 inch rims have what seems like pretty minimal backspacing as the edge of the tires are even or maybe a little inside the wheel wells. I haven't measured them for a definitive number. I then need tires. I am thinking about going to 32-33's and I'm not sure about 10.50s or 11.50s versus 12.50s. I'm thinking about the Cooper Discoverer Pro STT versus their sister Mastercraft Courser MXT and I also have a line on some new Goodyear Wrangler Duratracs for a decent price. Also trying to decide about rim width. I love to not have to buy new rims but if people think it would make a big difference to scoot out inch or so each side with better backspacing and wider rims, I could pony up and get a bit wider. So-discuss!