I'd love to enlighten you
The 6.0L engine is a corporate motor. nothing "H2" about it.
The 4l65E transmission, transfer case, and front differential are the same as used in the Escalade, Yukon, and Tahoe...nothing "H2" about it.
The rear axle is an H2 piece (unless of course you have a 3/4 ton Suburban)....hung from the corporate "Suburban" rear frame stub by the identical trailing arms, Panhard bar, and coils/air bags as found on the previously mentioned platforms. The only reason the rear axle is larger is to facilitate the 8 lug 3/4 ton hubs.
The front suspension is corporate, as well...the only difference between a Suburban/Escalade lower control arm and the H2 is the bolt-on shock clevis...the upper and lower control arms interchange between the sorporate platform and the H2. Of course, the H2 spindles ar 3/4 ton, 8 lug.
The basic frame structure relocates the suspension pick up points for higher ground clearnace, and the center of the frame is wider than the corporate platforms to facilitate the width of the body.
So, in essence, with the exception of the wider frame, elevated suspension pick up points, and 3/4 ton hubs...you have a basic Suburban platform. You can take virtually and Suburban/Escalade suspension piece and bolt it directly to the H2, and vice versa.
Hradly innovative. Hardly unique. Hardly "special".
What!? You think GM actually made parts for the H2!? Silly. Well, thats not entirely accurate. Gm DID makes those ridiculous plastic grille wings and the TOTALLY non fucntional "snorkle pods" and "Cowl vents"...you ARE aware that those cheesy pieces are TOTALLY cosmetic, aren't you?
Its a 3/4 ton Suburban, with a wider mid-frame.
Enlightened, now? Good
And I have a thick skin...my motto for stock H2 owners is the same as for Corvette owners...
"Nice hair piece, sorry about your penis"
It's just a truck, fellas