Ive been looking around at either an 05 or 06 chevy. I want to get another duramax. i like my lb7, but i want a newer truck. which is better to get lly or lbz? or lly in an 06 with the 6 speed?

kyle

LBZ, 6 speed. No doubt about it:D

Lbz.

the LBZ is the way to go. Upgrades were done in 06 to the D-max. The 06 LLY has the same mechanicals as the LBZ. I would go with an 06 either way. I think the diff between 06 LLY and LBZ is minumal. The LLY has a little less power than an LBZ. They have different programs and ecu's, I think.

hmm. so i want an 06 for sure. lly isnt bad, but lbz the best.

I'll move this out of the electronics section and into the LBZ/LLY section.

thanks.

HA! Who'd have thought, all the LBZ owners say LBZ. Well, I'll say LLY then. :D My LLY and most others have been trouble free. I also have an LB7 and have owned 2 others, but my LLY takes the cake. Don't get me wrong, the LBZ is better, especially for performance. But with more HP's, it's more trips to the fuel station! :eek:

hmm. true. Im trying to decide. theres a 2006 lly 6 speed alli lt for sale that i like but i dont know if i want lly or lbz.

I drive an LLY, and my brother has an 07 LBZ six speed.

Long story short...go with the LBZ :D that sixth gear makes all the difference, plus the LBZ crowd doesnt deal with all the lopey idle issues and the injector harness failures the LLY guys do.

Happy hunting :thumb:

Honestly, if they are in the same price range, go for the newer one. LLY, LBZ, or not. Newer = worth more.

very true. thanks for the info guys. the 06 lbz i wanted was sold :-( but im on the hunt again.

kyle

The LLY is available with a handshaker though, so it wins.

so was the lbz i think. nick from crank it up has one.

There's nothing wrong with a 06 LLY:)..Alittle tuning and its a LBZ:D

so 06 lly is good to go?

kyle

If you can find something with low miles and in really good condition, either will be a good choice. I was was looking (6 week search) for an '06-'07 Duramax for the wife recently and almost pulled the trigger on a 42K mile LLY, but happened to find the 13K mile C2500HD LBZ in my signature for the same price, so as some of the other members recommended, I went with the newer model with lower miles. Good luck.

hold out for an 07 with the better warranty

There's nothing wrong with a 06 LLY:)..Alittle tuning and its a LBZ:D


Agreed.:D

LBZ! 360 HP and six gears!!!

just make sure your 06 was built in jan or later and not before.the first quater of the 06 model is an LLY

whats wrong with the lly 06? anyone own one? how do you like it?

kyle

whats wrong with the lly 06? anyone own one? how do you like it?

kyle

Nothing wrong with it. It is just a detuned LBZ. 310HP instead of 360HP.

Go LBZ! Have riddin in LB7, LLY trucks. plus cant go wrong with 6 speed alli

im getting a 6 speed alli for sure. im just debating between 06 lly and lbz. i found one of each i like, but theres about an 8k price difference.

kyle

If everything else is relatively equal between the two trucks, go with the LLY, save yourself 8 grand and buy a tuner if your concerned about the difference in power. Done deal!

As the guy on Popeye used to say, "I will gladly trade you an LBZ today for an LLY on tuesday"....or something to that effect (guess I'm datin myself)

And I would. One reason: Mileage. Given whtat I pull, the extra 50 hp makes no difference, the torque is still there aplenty and that is what matters.

there is the matter of overheating that I have read about...but still.

stk

do the 06 lly overheat at all?

kyle

I pull 12,000 lbs in toyhauler with my 06 LLY lifted and all, no overheating. You won't notice the difference between an 06 LLY and LBZ. Same exact truck with 50hp diffarence. I did the exhaust and Predator programmer on mine and that's all I need.

If I'm not mistaken, the 05 LLY's were the overheaters?? Besides if you want the 6 spd. you'll have to go with an 06.

I just purchased a 06 LLY with the 6 speed Allison Tranny, built August of 05, one of the last before the LBZ. Mine has 17,000 miles and the guy that used it pulled a 34 ft 5R. I will be pulling 30 ft 5R and a 7,000 pound boat every weekend. Talking to the Duramax mechanics, the 06 LLY and LBZ's where the best motors. Least problems. New ones clogging up filters regularly with the new emisions stuff.
Spoke to the previous owner and got all of the service records from the dealer. No issues and oil changes and reprograming glow plugs once was the only service done.
Original owner traded in on a 08 LMM???
first couple trips, mixed but mostly highway at 70 MPH, all stock LT3 produced 18.4 MPG which isn't to bad. Looking into air intake upgrade and cat back 4' exhauyst. Possibly p/u 2 MPG? Possible tuner down the road.
I've seen a lot of positive for the LBZ's on this site, but I wouldn't pass up a super deal on an LLY. Very happy with mine.

I just purchased a 06 LLY with the 6 speed Allison Tranny, built August of 05, one of the last before the LBZ.

Man, that is a nice truck! Nice find! :cool:

Nice looking truck. I think it will do a fine job for you.

I pull 12,000 lbs in toyhauler with my 06 LLY lifted and all, no overheating. You won't notice the difference between an 06 LLY and LBZ. Same exact truck with 50hp diffarence. I did the exhaust and Predator programmer on mine and that's all I need.
Did the Predator and exhaust help your pulling mileage any? Do you watch EGTs?

My stock 06 LLY dually runs fine. 9-10 MPG pulling same weight, depending on how fast I want to go. It'll run as fast as I want to go.

I generally get 10.5-12.0 towing depending on terrain. I only towed a short trip with it before the exhaust and programmer and it ranged from 8-9 but was a pretty windy rd. with some good hills.

"No matter how hot see is somebody somewhere is tired of her crap"

Thats funny right there i dont care who you are thats funny.

I have an 06 LLY. Compared it to a friend of mines 06 LBZ. I couldn't find anything visually different. I raced his truck against mine and we both were neck and neck. The only difference between the two trucks is the color. According to GM there is no difference between the two except 50 HP and 37 KW. The LBZ also runs at 3200rpm versus LLY 3000 rpms to achieve maximum power.With the LLY I get 1 MPG better then the LBZ. That could be from different driving styles but I like to hang my toe out of the tail pipe. :D I have had mine since new. The engine has not overheated once. Had the glow plug recall. 30,000 miles Engine and trans are working fine. Biggest load on mine has been 400 mile trip to TN carrying (5) ATVS on tandom untlity trailer on the rear hitch. Pulled fine no overheating. My biggest bitch is the BFG ATs wear down too fast in the back!!!:eek: Good luck in your decision. I STOLE mine new from the dealer and love it. The new LBZs were coming in and they were looking to move the LLYs.

Here is some more information:

• LLY -- 310 hp with 605 ft/lb of torque for model years 2004-2008
• LBZ -- 360 hp with 650 ft/lb of torque for model year 2006-2008

LBZ Improvements

To reliably achieve an increase in 50 horsepower with 45 ft/lb torque, the Duramax ™ diesel had to be revised in many areas. A few of the revisions on the 2006 LBZ were:


• New pistons with a revised compression ratio.
• Wrist pins that are larger in diameter.
• Connecting rods with added material to increase the I section strength.
• Engine block and machining changes.
• Cylinder heads.

I just purchased a 06 LLY with the 6 speed Allison Tranny, built August of 05,

Sweet truck man.

I have a lbz and I know for certain that the 06 LLY is the same. It has the 6 speed, but I don't know if it has the useless(computer overridden)paddle shifter or not. I even bought a 06 LLY TCM to use on my truck.....the same.

Here is some more information:

• LLY -- 310 hp with 605 ft/lb of torque for model years 2004-2008
• LBZ -- 360 hp with 650 ft/lb of torque for model year 2006-2008

LBZ Improvements

To reliably achieve an increase in 50 horsepower with 45 ft/lb torque, the Duramax ™ diesel had to be revised in many areas. A few of the revisions on the 2006 LBZ were:


• New pistons with a revised compression ratio.
• Wrist pins that are larger in diameter.
• Connecting rods with added material to increase the I section strength.
• Engine block and machining changes.
• Cylinder heads.

It is important to remember that these are the differences between the 04.5-05 LLY to the very different 06+ LLY/LBZ

GM should have never really called the early 06 engines LLYs, they ARE mechanically the same engine as an LBZ with different tuning

so in my opinion go with the LLY "06" only if it is cheaper than an LBZ, and just tune it

06 lly it is then lol. hopefully i can get it in the next week or two.

kyle

the lbz is a much better set up!!!!

the lbz is a much better set up!!!!
Care to explain why?

LBZ it has slightly more power, a second overdrive, and less problems!

LBZ it has slightly more power, a second overdrive, and less problems!
People need to read before typing a response...06 LLY VS. 06 LBZ!!

the lbz is a much better set up!!!!

Care to explain why?


I'd like to hear this too...

because LBZ sounds cooler than LLY. But I still think either one would be great. Almost completely the same.

Go with the LLY, I did. I got a great deal on one 300 mi. from me. The dealer agreed to meet me half way, so it worked out pretty good for me. 'ripmf666' ran a vin check and there were some past issues (glow plug recall, ISS), but the owner turned out to be the parts manager of the dealership I bought from, so everything was taken care of. I've been getting +-18 mph highway, so I'm lovin' it.

Hell just be a big dog and get the LMM. Had to say that since 5 pages and no one has. Gotta say what u own right? Yes I know it is not a choice in the title, just looks so much better.

My vote goes for the LBZ, get a 2007 classic if you can for the 100,000 mile powertrain warranty. I'd take an LBZ anyday over an LMM just to not have to deal with the DPF, though they do look sexy, lol.

I think im getting the 06 lly, but i did find two lbz that are about 5k more with a little less miles that i like. nothing against the lmm, but i dont wanna deal with emissions stuff.

Kyle

I've put 34K miles on my '06 LLY (LBZ in reality). Most of those were run w/ the McRat race tune (~500 whp) and I've had ZERO problems. ;)

I like the '07 body style better but it was hard to resist 12K off MSRP in November of '06. :D

dang, thats a good deal. i think ill get the lly then.

I would never buy an LLY just because of the continuous engine problems we had with our '04 company truck.

Im sure the '06 LLY's are probably better but our '06 LBZ has been trouble free. I love that truck.

To my understanding the 06 lly are different then previous lly.

I would never buy an LLY just because of the continuous engine problems we had with our '04 company truck.

Im sure the '06 LLY's are probably better but our '06 LBZ has been trouble free. I love that truck.Unbelievable!! We have how many posts in this thread alone telling you that the 06 LLY and 06 LBZ are built the same with the only difference being in tuning:cool:.

Wow, so many people here replying with bad info!

The 06' LLY, and the 06' LBZ are the same truck. The only difference is the tuning which can be taken care of with a tuner.

Both trucks have a 6 speed!

I also have a 06 LLY, and have had 0 problems with it for 35,000 miles. I tow with it EVERYDAY, and have had it hitched from the second I drove off the lot with 14 miles on it. (old ford blew a head gasket :D)

Buy a PPE tuner, throw on the 90 tune, and you will have an LBZ with an extra 30hp.

thanks for the info you guys. It really has helped, but I did find an lbz that is in my price range that I like alot. The 06 lly i looked at had a hole in the box because removal of a gooseneck hitch. I mean yea it was a ncie truck but it had 112k on it. Though, it was fully loaded and had ranchhand front and rear bumpers that i liked alot. The one im looking at now is cloth LT with nice features. It has only 45k on it too and is in the lower 20k range which is nice. Im going to buy that truck and then get some "go fast goodies" and some new rims for it.

Kyle

204,000 on my 06 LLY. I have ran a Powerpup since 36,000 mostly on tow/econ, once in a while on extreme for fun. Only thing ever "repaired" on the engine is the glow plug recall. EGR is blocked and fingered, stock intake, punched out the cat and just recently did a muffler delete.

YES, ALL 2006 MODEL TRUCKS CAME WITH A 6 SPEED. Mine just happened to come with the ZF manual tranny:rolleyes:

NO THE 06 LLY DOES NOT OVERHEAT

damn, thats alot of miles on an 06.

new fall of 05. There used to be another guy on here that had more on his 06. HaulinRV had over 300,000:eek: That was about a year ago. He sold it and bought a dodge though:(

Did the (early) '06 LLY have the same Garrett "VVT" Turbo and Pre-heated EGR induction that the (later) '06 LBZ has...as well as 32bit ECM processing?

Did the (early) '06 LLY have the same Garrett "VVT" Turbo and Pre-heated EGR induction that the (later) '06 LBZ has...as well as 32bit ECM processing?HMMMM........Yep!

yes on all, anything the LBZ has my LLY has other than 60HP stock(300HP with ZF tranny), and you could not get the manual with theLBZ, flywheel issue. I saw some dinos from one of the programmer manufacturers, I think it was bullydog, that the LLY produced more HP on extreme than the LBZ. I think that was a fluke though.

Uh Oh...what's the deal with "No Manual Trans. for Flywheel Issues" and an LBZ?

This is for one of two Diesel-Retro projects:

1. An "Offshore" type Boat...Sans Torque Converter..."Direct-Coupled" to a (Art Carr Modified) TH-475 Automatic Transmission...and I was told that a Duramax had that accomodating "90 degree bolt pattern"...

2. A Bus Conversion (currently Gas BBC) where it was assumed (!?!) to easily couple with an SAE #3 Bellhousing/clutch Assy. ('76-'96 Kodiac/Top Kick application)

Actually, now that I think about that...I havn't heard a Duramax in one of those applications ever "Shift" like it had a clutch...HMmmnnnnn!

The assistance here is much appreciated!

I'd also heard you can effectively use a "FluidDampr" from a 454 Chevy application...which beats me, becuase the Serpentine Belt runs right off of the perimeter of the Damper.

I'm trying to get BanksPower to help me...they don't ever reply though...I'd guess I'm not One of the masses for these "Duramax" applications.

2007 and up. They had a "dual mass flywheel" Ford used to have the same problem years ago and they fixed it. Chevy's idea of fixing it is get an Allison Tranny;)

I am curious if anyone has the numbers of how many 2006 where with the ZF?