Reb,
On my personal trucks I've not had a failure. No problems with a VE, P7100 or VP44. I've seen P7100 pumps fail at just over 100,000 miles and higher. Most of them didn't die but made metal or failed on one or two cylinders. Purchased a core 175hp pump that was replaced recently for just that. I worked on a '94 CTD that a large diesel repair shop had installed new injectors---then told the customer he had pump trouble. I drove it, thought the timing was off (they said they had checked it) and found the timing pin to be considerably off. It ran fine after I properly set the time. This '94 had only 80,000 miles on it :--). Larry