Each have their benefits and drawbacks.
I have an '05 Cummins with the 48RE (Auto).
A friend of mine has an '07 LBZ.
Working on my Cummins is a whole lot easier than the Duramax (in general). GM using those stupid side-post batteries is a good example. Do you want to get access to the turbo? Are you sure you don't want to pull the cab instead (I know, approaching Ford there). I've had the head off of a 5.9L before. I wouldn't do it on any of the 'V's.
He got a compound turbo kit to install on his Duramax. I told him no, I'm not touching it.
I can't hate on it too much though. I did the glow plugs for him and was surprised on how easy they were to access. He has over 200k, and just dynoed 607/1263 in 5th on 35" with the stock turbo. Maybe we'll find the weak link after the compounds are installed and the fuel is increased.
