My name is Derek... I drive a 2004 LB7 Duramax CC/LB/Dually that pulls double duty as a weekday work truck and weekend crawler hauler. So far I have 230K on the truck... only 30k on this motor as I blew up the original at 200K by messing with the EFI live too much and not really knowing what I was doing... $10000 mistake, since then I've done a lot of research, a few little mods to this motor and keeping it simple (read: reliable) I'll keep the major modifications to what I do know... my crawler waytogo