Lookin' @ an 06 - Input Please

[Tagg33]

I'll tell you what I know. In '06 they started the high output LBZ duramax and6 speed trans. The simplest way to verify which series you have is the VIN# of the truck. The 8th digit is the engine ID and it will either be a 1, 2, D, or 6. 06-07 LBZ is a D. My brother owns a 06 LBZ and I own a 07. They are very strong/fast engines. This is my first diesel truck and I am really enjoying it. I have 24000 miles on it now and my fuel mileage seems to be getting a little better every month. I get about 21 mpg.