Tire Size
 

Hi guys,

Does anyone know what the maximum height and width of tires is that I can run on a stock 4x4 2500HD? My truck is bone stock, and I hate the tiny tires that GM always puts on their 3/4 ton and larger trucks. Eventually once I get the truck lifted I'll look at some 32's, but for now I'm just wondering what the max I can get away with is on the stock 16"x6.5" rims.

Thanks

I had 305/75r16s (33"x12") on my truck until recently. I had to crank the bars up almost all the way and trim the rear edge of the lower valance but they did fit without rubbing.

holy crap...those are big tires.

Was that on stock 6.5" wide rims?
Do you think I could I run a 31" tire without cranking up the bars?

They were on the stock rims for a while and just scrubbed the sway bar on real tight turns but didn't rub at all when they were on my MHT wheels.

You should be able to fit a 265/75R16 without cranking them. I think you can even get a 285 (about 32") under there without touching the bars.

Thanks Johnny

my truck came with 265s and i have no rub

you can get 33.5" tires on a stock LBZ.. I have my bars cranked up all the way with my 305/55/20 Nitto Terra Grapplers.. they measure out just a shade over 33.5" and only rub at full lock.. just a tad..:w2:

285/75/r16 is pretty big even for them 6 inch wide rims any bigger they will look like donuts.

265/75/r16 is abut 31 inches tall and u can fit them pretty easily on stock height.

I'm gonna be puttin 33" nitto terra grapplers with 20" rims on my 03 2wd. I have my tortion bars cranked up so that right now it's 10" from the top of the tire to the wheel well in the front. in the back i will have no problem fitting the 33's in the front however the guys at the tire shop say i might rub a little if i'm goin down a hill and making a sharp turn. So i think you should be good to go. my truck sits higher than any stock 4wd i sit next to so just crank up the tortion bars and you should be good to go :U:

BTW, I was informed by someone on here...:w2:^^^ not to crank the tortion bars more than 2 inches or you will have to get your tires realigned.