I can't get an answer on this, even from the dealer. I'm not holding it against the dealer, though, as they don't sell enough 5-speeds for this to ever come up. The manual makes no distinction between the AT and MT, so that would lead me to believe that it does have it. However, if you go to Hummer's web site and choose "Build a Hummer", the AT option states that it includes Stabilitrak, suggesting that the MT's don't. I don't really care one way or the other, though it would be nice, however it's driving me nuts just trying to find out for sure.

Thanks!

JR

 

I think it's safe to say that it's on the 08s as they added it to the 5 speeds in 07

http://www.gmhummer.com/timeline/2007/2007h3.htm

New for 2007 - Highlights [ul][*]Vortec 3.7L I-5 inline five cylinder with 242 horsepower (180 kW) at 5600 rpm* and 242 lb ft. of torque (328 Nm) at 4600 rpm*[*] H3X model with chrome elements and two exclusive colors[*] StabiliTrak now standard on all H3 models, previously standard only on automatic[*] Chrome wheel for 33-inch tire[*] Midnight Blue exterior finish replaces Superior Blue, and Shadow Green exterior discontinued[*] Ebony/Green cloth interior is discontinued[/ul]

 

Answered my own question here after a little more research. I did find the above info, but only for the European export models. Looked deeper into the GM archives and found the following press release which confirmed on the U.S. models.

http://media.gm.com/servlet/GatewayS...mp;docid=26869



FOR RELEASE: 2006-06-20
CONTACTS
HUMMER Announces 2007 H3x Pricing

DETROIT -- People seeking a HUMMER H3 with a customized appearance, straight from the factory, can soon add a new H3x to their garages. The first H3x models will arrive in dealerships in the United States and Canada in August, with a price of $38,065.
The H3x is based on the " H3 Street " concept vehicle shown at the automotive industry's annual Specialty Equipment Market Association (SEMA) show in November of 2005. It was created for consumers who want to make a personal style statement and differentiate themselves from other H3 owners.
The $38,065 price includes standard equipment such as full-time electronic four-wheel drive and GM's award-winning OnStar safety and communication system, plus HUMMER's premium four-year/50,000-mile warranty plan.
The H3x begins with an H3 equipped with the Luxury package, chrome tube steps, chrome appearance package, a chrome fuel filler door and bright roof-rack crossbows. The package also includes a body-colored grille and hard spare tire cover, 18-inch chromed wheels with a custom center cap, and a squared, chromed brush guard available only for the H3x. The interior features front seat headrests embroidered with the H3 logo.
Consumers can further personalize their H3x with one of nine exterior colors. Two of those colors are new hues that are exclusively available on the H3x model, Sonoma Red Metallic and Desert Orange Metallic. Both exclusive colors nicely highlight the vehicle's many chrome elements.
For 2007, H3x and H3 both receive a new engine: the Vortec 3.7L I-5 with dual overhead cams and variable valve timing. This inline five-cylinder engine offers an excellent combination of power and efficiency, delivering 242 horsepower (180 kW) at 5600 rpm* and 242 lb.-ft. of torque (328 Nm) at 4600 rpm. Also new for 2007 on all H3 models, including H3x, is standard Stabilitrak on all models, whether they feature a manual or automatic transmission. H3x buyers can select either transmission.
The H3x is scheduled to arrive in dealerships in August 2006.
CONTACT(S):
Dayna Hart
HUMMER Communications
Phone: 313-665-7718
E-mail: dayna.hart@gm.com
Nick Richards
HUMMER Communications
Phone: 313-665-9292
E-mail: nick.richards@gm.com

 

Makes sense and that is what I would have assumed. Thanks for posting the answer.