Tire size

Does anyone know what the largest size tire you can put on a 2002 Sierra 2500HD 4X4 without an aftermarket lift? I figure 33s but I'm not sure.

Thanks.

I HAVE 285/70/16 TIRES ON MY 2003 2500 HD. I KNOW OF SOME GUYS WHO CRANKED THE TORSION BARS AND AND RAN 305'S. I THINK IT IS BEST TO GO WITH A SUPERLIFT KIT 4" AND DO IT RIGHT TO GET ANYTHING BIGGER THAN 32'S LATER

Does anyone know what the largest size tire you can put on a 2002 Sierra 2500HD 4X4 without an aftermarket lift? I figure 33s but I'm not sure.

Thanks.

Well How much do you like to put in gas? i have 33 12.5 on mine and i am going to downgrade because i have a 2 inch lift 33's and a 350 i get about 8 miles to gallon my 35's were worse if u really want though get a 4 inch lift and 33's and 35's will work too but they will wear your tires more..... $$$