As a rule of thumb you really should go no higher than 7" total,
Dana 44's or corporate 10 bolt axles are rated for a maximum
tire size of 33".
A lot of people use higher lifts and bigger tires, but if you have
ever seen a wheel/tire break the axle you will realize why it's
important to follow manufacturers guidelines.
The majority of trucks i see with tires larger than 33" and huge
lift kits would break if they tried to follow me thru the bog.
That says 285/75-R16 is the biggest that will fit without a lift. That
would be 11.5" x 33.1" tall on an 8" wide rim. I don't think that will
fit on a stock wheel (because of the width). I really don't know if I
can believe they wouldn't rub. That's fairly wide. Plus, I don't have
8" rims stock, and it would have cost me new rims!
The 255/85-R16 is 10" wide on a 7" rim, and 33.3" tall. (for BFGoodrich
Muds anyhow). That's Taller, and narrower. So, it all depends on how
you define the word "big." Ask Clinton? But, I put them on standard
rims, and fit them on my truck just fine.
I have 255/85R-16'BFGoodrich Mud Terrains on my 2003 1500K Silverado.
That's 33.3 inch tall, 10 inch wide. That is the TALLEST tire that will
fit without a lift. They look like they were made for the truck, and
lifted the ride height up over 1.5" from standard height.
I can turn to full wheel stops, and go over big bumps, and they don't
rub at all. But, that's because they are fairly narrow tires.
I'm not sure how 2003 pickup compares to 2002 Suburban. But, I only
know what worked for me.
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