411,000 on mine. No problems with the motor to speak of, it's just the rest of the truck that has small stupid issues all the time. Some of these guys do not care if their odometer works or not, but I am one of those people who tries to keep everything working as it should, including the AC. Where are you from? Do they put salt on the roads? Nothing lasts forever, especially in Wisconsin. I know I'd rather have the '05, but that's just me. My truck was my dad's and he put A LOT of miles on it, and after 12 years, he figured his average monthly repair bill was half of a payment on a new truck. Do you want to make payments, or repairs?

 

OLD PICTURE ! has 700K on original motor .three head gaskets 2 injector pumps 1 vac pump assembly 2 water pumps 3 sets of injectors and a partridge in a pear tree

 

380,000 give or take a few on the original motor, 3 getrags, 4 rear ends and 1 injection pump do to a cracked housing, and a seeping head gasket that has been on there at least 150k I know of and still hasn't blown! That's about all the major stuff, and about a million little things here and there, but I still lover er'!

Chris