[chevyman2010]

I am wanting to get my first duramax and was wonder how much of a difference the 06 has compared to the 05. I know the 06 has the six speed in it and a few other things but which is the best buy. how much different mpg in the six speed compared to the five speed. thanks for any input

 

[White05LLY]

I would go with an 06

 

[02CoalRoller]

I would go with an 06

^^^x2^^^^ LBZ over LLY anyday

 

[White05LLY]

06 is still an lly. Just has lbz internals witch are stronger

 

[02CoalRoller]

in my FD's kodiak (an 06) we were told we had an LBZ????

 

[White05LLY]

The kodiak maybe different, but i thought the early 06 was a lly, witch the 06 lly and the 05 lly are different. i think the 06 lly is a detuned version of the lbz. I could be wrong about all of it maybe someone else will chime in and correct me

 

[boccheballs]

the 06 is the lbz motor with lly tuning plus has the 6 speed

 

[02CoalRoller]

Its only a matter of time we both learn which is the correct motor lol. But Chevyman, go with the newer truck. if anything- you'l have a higher re-sale value in the future.

 

[White05LLY]

think you boccheballs, i wasn't sure

 

[White05LLY]

Go with an 06 if you can, but if not there is nothing wrong with an 05. I love mine and have not had any trouble

 

[RBinTX]

Late 06's have LBZ's, early have the LLY. The 8th digit of the VIN is a "D" on the LBZ's.

 

[crdmax]

06 is lbz with lly tuning...u can even reflash to lbz tuning i believe!!!!!

 

[sick bowtie]

The late 06 were LBZ's. I have one.

 

[BUBBA3M]

I went with the late 06 LBZ.

 

[crdmax]

The late 06 were LBZ's. I have one.

correct...my bad!!!! i meant some of the early 06 were lbz with lly tuning and the late 06 had the lbz tuning:booboo. I still think you could reflash the early 06 that had the lly tuning with lbz tuning?????

 

[blott22]

Late 06's have LBZ's, early have the LLY. The 8th digit of the VIN is a "D" on the LBZ's.

this is what i was told also...

 

[DieselpoweredGMC]

I know LBZ is mid/late 06, I got mine end of Feb 06 and Feb is early in the year. Maybe it was because I special ordered it. First thing I noticed was the newer Duramax badge on the doors and the salesman told me it was a newer version with the 6speed. Must have just lucked up and got an LBZ.

 

[sick bowtie]

06 lly and lbz are identical mechanically and electronically. Just different programming.

 

[vaughninms]

Get the 06 LBZ...You won't regret it! Stock 50 more HP and 48 ft/lbs more torque iirc. I wish I had done my homework before I got my 05. I would have definately waited to find an LBZ. 6-speed tranny that can be updated with transgojr easier and cheaper than the 5-speed. Turbo mouthpiece problem already fixed. Too many other things to list. Find an 06 LBZ !

 

[Fighterpilot03]

Get the 06 LBZ...You won't regret it! Stock 50 more HP and 48 ft/lbs more torque iirc. I wish I had done my homework before I got my 05. I would have definately waited to find an LBZ. 6-speed tranny that can be updated with transgojr easier and cheaper than the 5-speed. Turbo mouthpiece problem already fixed. Too many other things to list. Find an 06 LBZ !

I completely x2 this