Jack's got it right!
If any here are happy to hear about Navistar doing poorly, they haven't been paying enough attention to the SEVERE bad times Cummins is going thru! As entertaining as it is to tease owners of other brand trucks, the actual reality of Navistar, Cummins or ANY of the former heavy-hitter US diesel manufacturers going under SHOULD be VERY sobering to us ALL!
We're losing WAY too much production ability overseas - an excellent recent example was displayed recently when President Bush promised to sell some submarines to Taiwan, but was rebuffed by the European members of NATO and the UN - and they backed up their non-support by pointing out that the diesel engines WE use in our subs are actually designed and manufactured in Europe! In other words, WE *can't* sell subs to Taiwan, because Sweden (I think it was) won't build the diesel engines for us to build those subs around!
We've GOT to STOP our increasing reliance on FOREIGN BASED sources for the stuff WE buy and use in this country - or sooner than we wanna think about, THEY will be imposing punishing blockades and sanctions against US to get their way, just as WE do Iraq, Iran, Cuba and others...