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: not just the lly overheating oteo125 07-10-2006, 08:19 PM i was at my local dealership today talking with the service department and they told me they have seen only 2 lly's in for overheating. One of them was mine. but they have seen 4 lbz's that were H4's. the H4's do have a smaller opening in the grill guard that they think is the problem. i really thought the problem was fixed but this info makes me wonder. Just thought i would pass this on. OCDUNE 07-10-2006, 08:38 PM What is an H4? duramaxdavid 07-10-2006, 10:33 PM What is an H4? yeah CRFer 07-10-2006, 10:47 PM Hummer with a DMAX? I thought I saw somewhere that you can get a Hummer with the Dmax/Ally... oteo125 07-10-2006, 11:15 PM the h4 is a package available around wyoming and colorado. you buy a duramax and they crank the torsions, install larger tires, nerf bars, billet grill and a lot of other stuff. Kind of like the king ranches by fords. gm is blaming it on the billet grills. i just found it interesting that they had the lbz motors. oteo125 07-10-2006, 11:21 PM http://www.cars.com/photo300-ad/DMI/23124/G634691.jpg (http://www.cars.com/go/search/detail/photos/multiPhotoPopup.jsp?paId=199673058&tracktype=newcc&aff=denver) dmax4u2nv 07-11-2006, 03:16 AM ya im sure that grill would do it. any excuse they can find.... | ||