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crcr's avatar
crcr
Explorer
Mar 01, 2014

Questions for LBZ experts about 06-07 Duramax 2500HD truck

I'm shopping for a used Duramax, 06-07 LBZ. I located an 06 that seems clean and priced right, but per the VIN (8th digit is 2), it is an 06 LLY. I have read that the only difference with an 06 LLY an...
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Turtle_n_Peeps's avatar
Turtle_n_Peeps
Explorer
Mar 01, 2014
DTR, the facts you have posted are correct for the first gen LBZ, AKA second gen LLY.

The second gen LLY or the 06 LLY was the EXACT same engine minus the tune of the LBZ. They called it an LLY even though it was technically an LBZ with all of the upgrades of an LBZ.

I hope this clears things up for the OP.

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