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Old 08-24-2014, 08:44 AM   #11
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Originally Posted by clubhouse View Post
If you can find an LBZ in good shape that is what I would get. Pretty sure that they are only available in classic body style 2006-2007.5. I have the next release, LMM, and I really like it but LBZ has less emission junk and gets a but better fuel economy both towing and regular driving.

If you are really sold on the new body style, then I agree with what you have heard about not getting the current engine. As I said I have an LMM and it's great but there is still the issue with having to let it regen which burns fuel.
I agree. I'm not a real big fan of the body style of the Chevys, but the LBZ was the best years of the duramax imo. I like the look of the GMCs with the LBZ, but they are few and far out there compared to the Fords.

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Old 08-24-2014, 11:29 AM   #12
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We have a 2013 GMC 4x4 CC Duramax that we have not had the chance to pull our new Jayco 361REQS with yet but we did pull our 11K Montana on a recent 3500 mile trip and averaged 12.1 MPG at a mostly 65 MPH.

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Old 08-25-2014, 04:28 PM   #13
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Can't really go wrong with any of them. I had zero issues with my '03, although it had already had the injectors replaced before I bought it. My current '09 LMM is a step up in overall refinement, but I wish it had the exhaust brake that the LML has. Ample HP and torque in all of them, and the Allison transmission is just a work of art and a real pleasure to tow with.

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Old 08-27-2014, 08:27 PM   #14
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So doing some more research. Looks like stay away from the 2011 model. 1st year for the lml and the urea injection. Sounds like maybe go with a 2012 or newer. I'll have to wait another year or so before picking one up. Thanks for your guy's input. Feel free to throw out more advise. I haven't owned a diesel before but I did drive one for work for 5 years which was a take home truck.
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Old 08-28-2014, 10:45 AM   #15
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Love my '06 LBZ. Aside from maintenance costs, I've had to replace 3 glow plugs. The first my stealer did for $200! I then bought my own scan tool ($80)and a 12mm deep socket ($4) and replace them myself. Amazon sells AC Delco glow plugs for $19 each. It's like changing a spark plug.

I currently have nearly 90k on the ticker and get 11-13 mpg pulling my Pinnacle at 60-65 mph.

If I were in the market for a Duramax, I'd join the Diesel Place forum at http://www.dieselplace.com/forum/index.php and poke around looking at some the problems the various models of Duramaxes are experiencing. However, don't let the negative posts scare you. All of the big three diesel manufacturers have similar forums that are used for problem-solving sites.

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Old 08-28-2014, 01:00 PM   #16
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2006-2007.5 LBZ. This from many GM mechanics and a brother in law who is a plant manager at the GM/Chevy HD factory. Also, you may notice they are the hardest to find. Coincidence?
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Old 08-28-2014, 01:05 PM   #17
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My FIL has one, somewhere around a 2000 model he bought new and used it for towing a 5er. Just past 100K miles he needed a $4200 injector job. Ouch. I`m sure they have addressed that issue since then.

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Old 08-28-2014, 01:07 PM   #18
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2005 Duramax with 128,000 miles and zero mechanical problems. Can't say that for the batteries, though. Original set lasted 80,000 miles and have installed my 3rd set of Interstate batteries since then. When one goes bad, it drags the second one down. Good news is there has always been a reasonable adjustment towards the next set. That's the only reason I haven't switched to another brand. 11-12 MPG towing (60MPH) and 18 not towing (65MPH). I'm happy with it and hope it lasts another 128K.
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Old 08-28-2014, 01:16 PM   #19
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I've been very happy with my 2007 GMC Sierra Classic LBZ. But just so there is no confusion the 2007.5 duramax is not a LBZ. It's the LMM. I saw two posts saying that they were....
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Old 08-28-2014, 01:20 PM   #20
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Yeah, I guess I should have said 2006 up to mid model year 2007. The "older" body style. Also beware there is at least 2 different transmissions in that range as well and different gear ratios. But they all are good.

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