Can anyone tell what would be the biggest tire size i would be able to put on stock suspension 04 suburban. mud tire or all terrain size not rim size

 

The size of the tire is going to directly relate to the rim size. Without knowing what size wheel you have no one will be able to answer.

 

Assuming you have the 17in rim you might be able to to squeeze in a 30X10.5

 

If it is 4wd you could crank the torsion bars up some and probably fit a 285/70/17 that is if you have a 17" wheel a 16" wheels would be a 285/75/16 i think you could fit those

 

I've got 285/75/16 all terains on my 97 4x4 Hoe w/ 2" bodylift. Only rubs on hard turns. Look great and was able to keep the stock rims.

 

sorry about that they are 17 inch rims and it is a 4wd

 

where do you rub? i am running 285/70/17 on a 17x9 with 4.5" of backspacing and i only rub when the wheel is turned just right and i hit a big bump. I never rubbed when i had the 285s on the stock wheels excapt the lower control arms

 

It all depends on how much cutting you wanna do.

Deez

 

I am getting Bushwacker cut out fender flares which will add 3 inches more tire room and they look awesome!!

 

Try a heat gun before you cut any out of the fender liners. Easy to reshape when warm.