What Badboy said.
My 2.8 had 140k on the clock when i got it back in June, it has now just gone past 163k (9 months) it's been pretty reliable as well apart from me killing the turbo, but I put that down to me dropping the truck while out laning, missing a couple of oil changes and putting some oil flush thru the engine the day before the turbo died (having since removed the sump I now know I didnt get all the contaminated oil out, in fact I would have left at least .5 ltr in there).
Like anything mechanical they wear, but so long as you keep on top of the maintenance these things will go on for years.
This posting may have been helpfull, on the other hand probably not... Either way, I may have had drink when posting it in which case it's probably not as helpfull as it could have been
Work safe, and remember all technical problems can be resolved with a hammer, the trick is knowing where to hit it and how big a hammer to use (I often find it may also help to have a spare bit in the shed to replace the bit you have just mullered

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Work in Progress (or not as the case may be) I give you....
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hereWork in Progress (or not as the case may be) I give you....
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hereOwning a 2.8 is a hobby in it's self...