sorry, but I have and do actually go offroad and I have never rubbed or bottomed out with my 35's, neither have any of the people that made it through the rubicon with 35's. It's 6 of one half dozen of another, sure you have slightly more wheel well space with smaller tires...but you also have slightly less ground clearance with the smaller tires too

 

There is another issue when you go to these tires. The 265/75R 16 has a 30 psi cold reading the 285/75R16 has a 35 psi cold reading now this may or may not set the check tire pressure lite on. This is because you have low limit and a high limit for psi reading which may be outside of the 265/75 tire range. You need to set this up with a tech 2 scan tool for the correct tire being used. It may be fine but if it is not go to the dealer and have them set it up for you. You are also suppose to reprogram the PCM for a different tire size also. Steve

 

i have no faith in the tps system at all.....I don't even have the sensors installed and I have only receives the serv tpm message once. Definately not one of GM's best innovations

 

I'm beginning to lose faith in the tps myself.
With the colder weather, they were going off constantly..on..off.on..off.. depending on what the road was like. I finally pulled up all the reccomended settings and it said 35 psi...I checked and I had 4 at 34 and 1 at 33.5
Now I know it was technically "low" but I think 1.5 psi below reccomended is still safe... It would be incredibly helpful if it told me which tire it was complaining about too.

 

I am considering splitting the difference and going with a 295-75-16. It is 33.4" high, with .3" extra width over the Adventure size. My thinking is they won't rob as much power from the engine (as a 35"), yet they will still be a little bigger. I am considering the Terra Grappler by Nitto... but I have been a fan of BFG All Terrains ever since having them on a Toyota pickup I had a few years back.

 

Ive had my 315's on my truck for a year now ,, no problems other than a slight rub at full right turn. I took it into my buddies shop and the aligment hasnt changed. I did a 2-1/2 t-bar turn. No problems wheelin as long as I dont get crazy. I'll tell ya the look of 35;s on the H3 is way COOL! and worth the couple MPG's less and to tell ya the truth the power is still there. Go with at least the 33's, I have a friend that has them on his and it fills the wheel wells nicely. Just my 2 cents. See ya

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