General Discussion
In reply to the discussion: Chris Dorner has vanished and he may be armed with shoulder-fired missiles and a .50 caliber rifle [View all]beevul
(12,194 posts)Many vehicles that have a rear differential, use pressed in axle tubes, rather than welded,.
If this vehicle did indeed have that sort of design, its no stretch to think that its possible for one of the pressed in tubes to come loose under the heat when the truck burned.
Having looked at a few pics, such as this:
http://image.fourwheeler.com/f/8850869/129_0506_10z+nissan_titan+rear_axle_assembly.jpg
It appears the axle tubes are indeed pressed in, rather than being an integral part of the unit like a ford nine inch is.
This is speculation on my part that it may have happened, but I have seen this happen on other vehicles before, in my youth when I worked in the auto salvage business. More than once I saw a badly burned vehicle that got so hot that one of the axle tubes came loose.