[HUMMERcustoms.com/TAZ]

HGW will have exact numbers if You want them.

Do not do it. You will have such a doggy machine You will wonder why did I buy this and it was not the H2's fault. It is geared where it should be for normal use. If You do anything You go to 4.56 and that is if You are going to be off roading like all the time. I would say to justify the 4.56 You would use them for their intentions that unless the misses is with you You will end up divorced.
I may go to 4.56 since I do not drive it much as it is for shows but, it would help it on the low end when I'm out goofing around and blow rice rockets off the road at launch.

We do not recommend changing gears unless a person can provide a real good reason We should do it for them against Our better judgment for them. It would be payday but, not worth seeing someone unhappy. I share it only to support My recomendation. We do not do things for the all mighty dollar. We turn down lot's of work because We do not want Our name associated with it is being done because it is going to go bad.
Run Your rig like it is and just have a light foot and you will get good milage. Before I went the KenP way of power I got an avg. MPG of 12.9 when I drove it civil. I did have many aftermarket perf. items on and if You want to PM Me i will guide you on that.

I still can get up to 10 or 11 if i keep My foot out of it but, it is extremely rich so i'm hoping as i fine tune and lean it out I will gain more MPG. I'm running a program that scans all the time and after 100 miles i will check it in the editor and make a change download and run it another 100 miles. I do not drive it enough to worry but, the experimentation is to learn so i can help customers. Soon I'm going to start tuning pure stock H2's as My discovery is they are so rich I wonder if I can tune it and get another 3 MPG and do it safely. problem is Your dealer. Will He go along. My dealer will as We work close together and he is perf. oreinted so Our states customer will be able to benefit from the experiments. it will not be expermintal when i start doing it as it will be fine tuned but then and i may just flash PCM's and sell it so they can pull it and put stock back in when going to dealer. Like a hand held but, i do not want to get into making handheld. I would just rather mail you a PCM that costs less than handheld by allot. Anyway working on things to help My Hummer brothers.
TAZ