Guys who went to 35's . . .

[K9sH3]

JW,
I would hold them to it also, they lied (fraud) to sell you a H3. If you have that in writing you may have a new 3 coming if this one turns out to be a POS. In the mean time, I would do as Hummbebe said "Wheel the hell out of it" they (dealer) customized and gave it that name.

No amount of so called tuning combined with aftermarket intake and exhaust systems will counteract the hit to acceleration caused by the larger diameter 35" tires. Your gearing is now substantially taller than the stock H3 w/32's or 33's.

[JWSchmidt3]

Originally Posted by Steve - SanJose

No amount of so called tuning combined with aftermarket intake and exhaust systems will counteract the hit to acceleration caused by the larger diameter 35" tires. Your gearing is now substantially taller than the stock H3 w/32's or 33's.

So, would a gear change help??

Originally Posted by JWSchmidt3

So, would a gear change help??

Gearing change would certainly help. But others on this forum have researched that and can talk feasability.

[HummBebe]

Originally Posted by Steve - SanJose

No amount of so called tuning combined with aftermarket intake and exhaust systems will counteract the hit to acceleration caused by the larger diameter 35" tires. Your gearing is now substantially taller than the stock H3 w/32's or 33's.

Using a calculator would show that it reduces you to about 4:29's. Still better ratio than on an H2

[BACKNBLACK]

The Hummer H3 has "Adaptive" shift learning. Even going from 32" to 33" no computer "reprogram" is necessary. I have 35" BFG MT and mine shifted funny for about 3 days and then bang "Adapted" Talk to your H3 Mechanic he should be able to verify this. Hummer engineering has also commented on this in a few earlier articles during the "promotional phase of the H3" Hope this helps.

BTW here are the stats for the 35" Change from the 33'S"

[BACKNBLACK]

BTW even with a 2 1/2 Turn of the TBAR I still rub against the plastic and A arm at full crank. Nothing to get nerveous about but just be aware that if you like a "RUB FREE" Hummer than 35'S" are not for you :-)

[JWSchmidt3]

Originally Posted by BACKNBLACK

BTW even with a 2 1/2 Turn of the TBAR I still rub against the plastic and A arm at full crank. Nothing to get nerveous about but just be aware that if you like a "RUB FREE" Hummer than 35'S" are not for you :-)

I already have 35's, along with a 4" lift. My issue is with the transmission and how it shifts. See my sig and original post.

[BACKNBLACK]

Originally Posted by JWSchmidt3

I already have 35's, along with a 4" lift. My issue is with the transmission and how it shifts. See my sig and original post.

OOPS :-)

In that case....... is it possible the lift has caused your issue. In my Hummerclub that I manage none of my members that went to 35's have this issue longer than a few days??? The only difference is the lift???

[lotus4s]

Originally Posted by JWSchmidt3

I already have 35's, along with a 4" lift. My issue is with the transmission and how it shifts. See my sig and original post.

As someone else suggested, contact PCM for less. They can adjust the shift tables....