Saw a few reviews and my 09 2500HD Z71 Duramax came with the running boards, but a spray in Box Liner would have been great. Had a 01 2500HD with the duramax and loved the truck, had lots of power, hated the problem with the injectors. (3 sets in 200,000 Km) at $5400 a set it really is a ripoff. (why I traded it in was a toss up between a dodge and the Chevy) At least on the 09 injectors are easier to get at on the new Chevy. would have liked more power, the 01 seemed to have more get up and go. The only problem that I have heard from a friend that has a 09 is the air filter sucking in moisture and freezing in cold weather, will wait to see of this one does the same thing.
Duramax/Allison, ride and look of the truck
include spray in box liner, more storage in the cab, bit more leg room in extended gab back. Bigger tires.