I've owed a total of 8 Duramaxs over the years. Still have 4 of them and they are leaving this spring. Fuel is too costly and the problems just aren't work the extra power. All but one have had a major problem which GM took care of all but the last one.
Injectors, Heads, Turbos, Wiring Harness, injectors, glow plugs, more injectors........................ Down time back orders yada yada yada.
It's just not worth it or I must have the worst luck.
2008 2500HD Extra Cab Flat Bed 4WD chevy loaded with 120K
2004 2500HD " " pick up 4WD loaded with 190K
2005 4500 4WD Kodiak 60K Dump
2004 4500 2WD Kodiak 170K Flat dump w/sides
All Automatics make some offers as I'm going all gas in the light truck line of mine.