How can you tell a LB7, LLY, LBZ, from a LMM

[JimStout3]

Could someone tell me how I can figure out which DuraMax 6.6 I have? It's a 2007 Chevy Silverado Classic Crew Cab 3500, SRW.

Thanks
:confused:

[DmaxMaverick]

Welcome aboard!

Your 2007 Classic has an LBZ

2001 - 2004 = LB7

2004.5 - 2006 = LLY

2006.5 - 2007 = LBZ

2007.5+ = LMM. Also began the "new" body style. No LMM's in the "Classic" style.

[Kennedy]

Could someone tell me how I can figure out which DuraMax 6.6 I have? It's a 2007 Chevy Silverado Classic Crew Cab 3500, SRW.

Thanks
:confused:

I have notes detailing this in the paragraph: Engine Identification

http://www.kennedydiesel.com/categoryresults.cfm?Category=4