1991 Suburban 1500 tire and wheel fitment?

[Supertrucker]

Hey everyone,

I recently purchased a 1991 GMC Suburban V1500, which is in need of new tires. The previous owner replaced the original set with passenger car tires instead of LT's. Now the factory size is 235/75-15 and I would like to upgrade that size and type. I am unclear as to the size of the wheel and just how big a tire I can safely go. I know the diameter is 15", but can I fit a 10.5" tire on the factory rim or not? It has a bone stock 6.2L with a Banks turbo kit. I was thinking a 31 x 10.5/ 15 would work, but I need to know for sure. Thanks

[wfyehl]

When I had my 1981 K10 Chevy PU, I bought it with 31 x 10.5/ 15 All-terrain tires on it. When those tires wore out, I went up to 33's. With the 33's, I had to trim a little of the rear of the front fenders. I also had 3/4 springs on this truck, so it seemed to sit a little higher that a stock 1/2 ton.

[Robyn]

The stock wheels that came with the truck will allow 31/10.50 x15's with no sweat.

Any bigger can get into rubbing issues unless the truck has been lifted

Good luck

Robyn

[trbankii]

Most tire companies list the information such as this: http://www.bfgoodrichtires.com/specs/all-terrain-t-a-ko/44.html

The fifth column lists the recommended rim width for the designated tire.

[Supertrucker]

Thanks everyone for clearing the air on the issue. I can now get my 31's that I wanted.