Question: are all 2006 duramax lbz?
Answer: The 6.6L Duramax LBZ's applications included the Chevrolet Silverado HD, GMC Sierra, HD, Chevrolet Kodiak, and GMC TopKick (the Kodiak and TopKick being medium duty truck models. ... The Duramax LBZ was produced from 2006 to 2007 model years, with the LMM replacing it by mid-2007.