If you had to buy a used diesel truck today..

[Wayne64SS]

@toomanycamaros

Not that it really matter since your looking at a newer one, but I believe the bulletin/recall Frank referenced on the injectors on the older duramax motors has been revised and shorted to a 7 year window. The newer d-maxes have issues with the level sensor in the DEF fluid tanks, a reflash(free) takes care of that. The newer trucks are animals. I have an 07 and love it. If you plan on lots of mods a 06 or 07 are the easiest to mod since they have the strongest engine/trans combo and no DEF or DPFE system. Also check the trans cooler line and the pitman and idler arms (3 most common thing the trucks go through). Other than that great platfrom.

also check the sweet cavalier sized inner and outer tie-rods.