The truck version of the HUMMER H3 has a 22 inch longer wheelbase than the SUV version. The H3T will also be powered by the same 3.7L 5-cylinder and 5.3L V8 engines that are found in the SUV.
Unlike the H2 SUT, the H3T is a real truck with a full length bed. Overall the H3T is sized between the Colorado/ Canyon and Silverado/ Sierra pickups in the GM lineup.
Expect more details and an official press release soon.