Transmission options- supercharger

[mboard]

I have one of the first 2003 H2's and my transmission just failed. I have 60k miles and the tranny just lost D (drive) and 3. I have whipple supercharger and 38x15 tires and am wondering 1) have there been any changes in transmissions since June 2003 H2 release, 2) What transmission can I replace (if any) mine with to be a better match w/ supercharger, 3) Or is their a rebuilt kit to upgrade current transmission?

I also searched trheads and found mention of a 1 ton GM transmission, 4L80E. Can this replace and bolt up to the H2?

In the threads a company named Rossler Transmission in Ohio was mentioned as a company that can rebuild transmissions to handle supercharger. How has anyones experience been since having them uppgrade your tranny? It seems odd that I would ship a tranny all the way across the states to Ohio. Couldn't any shop do changes?

Any help is appreciated.