my tires were 2600.00 just the tires

 

I put 285/75/16 on mine, but put new rims to them cuz you can see the tire bulge on the stock rim it's pushing the limit this size on stock rims. Can do but pushing it. Off set of the rim is going to play an effect as well some offset more than other which can make the tire rub. Mine rub slightly only when i crank the wheel all the way. Putting the leveling keys to the truck would help with less rub.

 

285's on th stock alum wheels is about the biggest you can go without trimminf much of anything.

you might have to you can crank up the t bars about 3 turns, but besides that its all good.

if your feelin frisky you can stuff 315's under there, im currently running 315/70/17's with my front end lowed, but i did trim alot off, including my bumper

 

i got 315/75/16 but then again i have a 6 inch lift under her i wanted to try and throw some 37's on er