HummerNewbie, were those 35s you got for $400? Any chance you can get that price for a 'friend'??

Ended up going with the 33"s since I wasn't totally sure how the 35"s would effect mileage and power. Unfortunately I think I used up my friend pricing on this deal but if you want tires, I can always check the pricing out for you.

Thanks Newb.. I'm in the market for 35s though.

Great info there, I can add a few other pieces of info. If you want to do a lot of offroading, going with the lower rating gives you a softer sidewall.

C rated is lower than E and is a much softer ride - I have 2 sets of tires for my suburban (3/4 ton tow rig) and there is a noticeable difference. The E rated tires tow great, nice and tight, but feel like I'm driving on cobblestones. The C rated tires actually have a 'loose' feel like the front tires are floating, but wow! they are great for quiet drives and are very soft on even rough pavement. I would highly recommend load rating C unless you tow.

Everything has a tradeoff, I loved the C rated BFG AT/KO tires for my Jeep and will likely be getting the 315s for the Hummer when I wear out the current tires (I just checked, they are rated C). I will go with the C rated, since I can tow with the suburban.

I paid $875 for a set of 4 mounted and balanced at Les Schwabs. As far as road noise. I can hear them but they really are not all that loud in my opinion.

I had the 33's on for about 5 months before I got the Xtreme A/T. as far as difference in truck preformance I really cant till the difference . Throttle response seems pretty much the same ,,Off roading is a big improvement FerSure. The A/T's do a great job in snow and mud for being a all terrain tire. The tread is alot deeper than the pic shows. I dont drive around town with a heavy foot,, really just like to cruise it,, so someone who puts there foot into it alot might see more of a difference but I really doubt it. Heres the link where I got my proComps http://4wheelonline.com/Categories.aspx?CategoryId=1517

What kind of mud flaps are you using on the front? Do you find them wide enough? Was up at the ski last week and man did up pick up slush and dirt all along the side?

I just order the OEM front ones. They don't completely protect the fenders but it does help. Unfortunately, or fortunately, we just have not had much rain at all since I installed them so haven't gotten to really test how they work.