Reply to "How big a wheel tyre combo can I put on a std body pantera ?"

PC,

I like the 225/35R18 and 315/25R20 combination, its obvious you understood the concepts. I understand why you have chosen the narrow back wheel, but I really don't like their 10" width. They should be at least 11" wide with the back tires you have chosen.

The backspacing of my 9" wide front wheels is 5 3/4", to center your front tire the same as mine, your 8" wide wheel would need a backspacing of 5 1/4". Backspacing the front wheel only 4 3/4" will move the tire center 1/2" outboard in relation to mine. My front tires have about 1/4" outboard clearance, and your tires are about 3/4" narrower than mine, so I estimate you could center your wheels 5/8" further outboard at the most, but that's pushing the limit. A little more conservative backspacing would be 5" even.

I recommend the backspacing for your 10" back wheels to be 5 3/4" (my 12" back wheels have 6 3/4" back spacing). 5 3/4" backspacing should center your tire identically to mine. Remember, I had to roll the fender lip a bit, but your slightly narrower tire may not require that. 6" backspacing will move your tire 1/4" inboard, although this would alleviate any chance of the tire rubbing on the fender lip, it may rub the inner wheel well, your tire is not that much narrower than mine. However, if 6" back spacing is your nearest choice with these wheels, go for it! We're only talking about 1/4" difference. The tire cross section is 10 mm less, you might get away with it.

You'll be delighted with the looks, can't wait to see it myself.

cowboy from hell