[kacyk]

When I had my 20" Lexani's I had Les Schwab Tire throw on a set of 37/13.50-20 Toyo Open Country MT's. The rub was annoying enough for me to get 35/12.50-20 Nitto's. No rubbing at all.

I've read in this site that 37/12.50 tires will fit with little to no rubbing, depending on the tire. The biggest factor at that point will be the off set and backspacing of the wheel you choose. For example, my Lexani's were flush with the fenders while my Kaotic NT-2's stuck out almost two inches.

Also, if you go with 37's you'll end up having to get a programmer to address the slight loss in torque and speedometer issue. I've read several posts and asked many questions and this is the general concensus.

35/12.50-20 is the correct diamter for your truck. Also, please note that if you go with anything above 18 inches you'll feel the extra upsprung weight when you apply the brakes. That's why on our second Hummer we bought 35/12.50-18 tires and 18" wheels. But if you insist on 20" wheels, go with

35/12.50-20 or 325/60-20 tires. Both are correct for the H2. I highly recommend Toyo Open Country M/T's for their aggressive and quiet ride. Nitto Terra Grapplers are great as well.

Here's a pic of my old 18" combination with Toyo 35/12.50-18 tires. A Hummer needs meaty tires! Don't do the rubber bands!