37" x 12.5 x 17
Max tire size with stock suspension is 31"
For stock truck a 31 inch tire is the biggest possible and even this tire will rub
1 in
With stock suspension 3110.50 is as high as i would go
I got a 2003 Chevy silverado 4x4 z71 stock suspension , and i install on it 285/75r16 tires, that's the biggest tire that you can use, i put that tire size to in a 2002 Chevy silverado work truck 4x2, with no problems. You can trust, good luck.
I have 33 in on stock 05 1500 avalanche rubs little when turned hard but work & look awesome.
I think you can fit a 275/60R15...... but please tell me if I'm wrong!
with a lift i have seen 44s but with out a lift... no idea just run with the stock size as you will get better fuel economy
Depending on the tire, some people have successfully installed a 140. Otherwise, the stock tire is a 130
I have a stock 1999 Zr2 Blazer and and it has 33x12.50s on it. (but it rubs)
33x12.5
The biggest tire would be around a 31.5" tire without cranking the torsion bars. I cranked my torsion bars all the way and was able to fit a 285/75/R16 tire which translates to about 32.86". So about 33"