Builder,
I am in no way saying GM does not make a good product. I do not wish this point to be lost. I take issue with the comment that originally got this thread within a thread started. I have no doubt as to your experience with hauling machines and heavier duty trucks than that which I own. I do think, though, that the innuendo given--in this post with sentiment in others--was that Fords somehow break easier than GM's and this simply is not the case. Both are fine machines and I feel this position may have been based on one of the older trucks used. In this post, the examples you use are valid, but relatively few in number. GM does have a heavy duty transmission, but I have found no one in my area, either towing or wrenching that feels it substantially more durable or functional than the Torqshift. GM does have a heavier rear axle. The drive shaft on my truck is actually larger in diameter/circumference than my friend's GMC--though I do not know if that translates into the larger models. GM has an extra gear with the trannie--which is really nice; but it takes about five minutes on a service dolly to see that Ford has a solidly built and heavy duty truck. It has a heavier duty suspension/front axle/control arms/steering assembly/brakes, etc. The frame is heavier and has a full bulkhead enclosure--which I think is currently exclusive (at least as of last year). It is also a much heavier truck, based on curb weight. My position based on this is that a Ford truck is no more likely to leave one stranded with a load or on a job than is a GM product. And for what its worth, my "idiot gauges" never seem to vary from dead center, so a difference of 200 degrees v. 205 is not that material for me. The power towing mirrors, back up camera to accurately line up your trailer (does GM have these??) and tailgate step are. The trailer brake controller, which GM liked so much it copied it, is also nice. It is also the case that for 2008 MY the truck is upgraded substantially v. previous renditions and lest we forget, they in all were pretty durable machines, albeit spartan. I read into your post the implication that perhaps I and others such as me do not use their trucks as a diesel "should be used" and that you do. While I have no doubt you use your truck fully, I do as well so I feel no less credible in saying pulling right at the limit for weight when I pull, it does great. Stable as a rock and good power--and no, even though I do not pull often I do not feel for my current needs a half ton would do it safely for me--thus why I kept my truck (even though I still cannot fit it into the parking garage at work). It is true that currently there are no 1000 HP 6.4L's out there--I thought the poster you mention had a Dodge--but I could be wrong there--but you and I both know that big HP 6.4L's are coming. Twin turbos, and a block and engine assembly that heavily made logically speaks to more power by aftermarketeers. Remember it is UNPROVEN (your statement), which means it is new--give them some time and the natural thermodynamic improvements harbored by such a design will support mods for those that wish to. I am not trying to sell you on Ford, or anyone else for that matter. I really have no interest in getting anyone to buy the truck I have. I do have an interest in letting folks know that I have one and it is a whopping improvement over previous models. Our OP and the intent of the thread was discussing the liablities of high capacity half ton's v. 3/4 ton trucks or heavier. This inevitably leads to X truck will do this; Y truck that, etc. I have no doubt that a Toyota 1/2 ton can safely pull 10,300 pounds; I also have no doubt that my Ford is very UNLIKELY be "Ford Tough--until it breaks." (1999 model??) It will break sometime, but I doubt any sooner than any other make.
Also, since GM sold its medium duty lineup (I read 4500 and up) to NAVISTAR, what are we going to do? I have read that Isuzu will continue to supply the Duramax through 2008 but after that it might be a, gulp, 6.4L as an option(???) I hope that's not true because then we we cannot discuss the 4500/5500 topics in the same light.
John M