from a reliability stand point LBZ, no cracking injectors, no over heating problems, and most power/torque in stock trim, strongest block...... 6-speed Allison, need i say more?

the LMM is the same as the LBZ, but it has a few more EPA required bits

 

Yeah but with the lmm you can just buy a new tuner and delete all the emisions bullshit

 

What years are which?

I'm in the starts of shopping for one. This one was to be more creature comfy according to my wife.

 

Your Gonna want the 07.5-10 LMM

 

I have had an 03, 05 and 07.5, of them all my favorite is the 07.5, but when I bought each of them the newest was my favorite, if I bought a brand new one, it would probably be my favorite.


Chevy/GMC Duramax 2011 LML

Chevy/GMC Duramax 07.5 & UP LMM

Chevy/GMC Duramax 06-07 LBZ

Chevy/GMC Duramax 04.5-05 LLY

Chevy/GMC Duramax 01-04 LB7

Chevy/GMC 6.2L and 6.5L

 

I like my lb7. Don't get me wrong. If I could afford it I'd be rolling in an lmm

 

If i could afford it i would be rolling in an LML Denali.... i got wood the first time i saw one

 

as of now im likein my 07 LBZ.im not a fan of the the 7.5 styling in or out.i also spend a lot of time off the road n you seem to get better ground clearance with the classic GMs.i also didnt want to have to go thru the BS of deleting the DPF.i still wanted a truck under warranty.just my 2 since

 

LB7!!!!

 

im happy with my lb7 plus it has no epa bullcrap on it they are easy to get power out of
but lbz's have a lot beter block and crank