Tire size for rim

[Ender2664]

Couple of questions, what is the stock rim size in width and how big of a tire can i fit on it, i think it is a 255 but correct me if i am wrong. Then i am going to get some new 18s and i was wondering what are the biggest and smallest size tires that i can fit on a rim that is 9.5 and the same question for one that is 10.5?

[Nachius]

Stock rims are 16X8 and I believe 255s are correct for those.

As far as the 9.5s I have had 245s and have seen 315s, but I don't know the largest/smallest for sure.

[V6Bob]

If you look at detailed tire specs, either on manufacturers websites or at

www.tirerack.com

you'll see recommended rim widths for various tires.

[Ender2664]

Why is it that some of the 9.5s recomend 245 and others do 275? Why the hell would i get a 9.5 if i was going to run a 245? If the recommend a 245 is it still fine if i run a 275? And lastly, will the 18inch by 9.5 on a 275 rub if i lower it on eibach springs?

[ellik]

tires are rubber... mostly. they stretch and bend. the range in the 9.5's is like the range in 8's. you can put a 225 or a 255 tire on it. I dont think anybody would buy a 9.5" rim and then put 245 tires on... well, anybody other than GM anyway. But you could....

you will be fine with a 275 wide tire on a 9.5" rim.

I think if you stay with a 40 height tire or less you wont rub.