[HummerMann]

My uncle retired from AM General and still lives in Misawaka, Ind. He worked in the H1 and H2 assembly plants and provided the following information on H2 frames.
The main difference between the 3/4 and one ton frame is the thickness of the channel steel. The one ton is slightly thicker. In early 2005 GM had a difficult time providing 3/4 ton frames to AM General because of supply and demand by GM so they provided the one ton frame sections to AM General around March of 2005 through roughly Feb of 2007. So if your H2 was manufactured between those dates, your front frame is probably from a one ton and your frame weighs about 30 pounds more than the other year H2 frames. I also took the Hummer plant tour several times, twice with my uncle on a private tour, but they always made me give my hard hat back and towards the end of production they didn't even give people on the tour hard hats.