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Old July 13th, 2010, 09:23 AM   #1
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my new tow rig - 06 LBZ

I finally had a little free time to get my new tow rig cleaned up so I can put some decent pics up. It's a 2006 2500HD Duramax (LBZ) loaded with every option except Onstar. It had 8,000 miles when I bought it and is now up to 15,000. I've been incredibly impressed with how it performs and I'm enjoying it more than I ever imagined I would after a few key upgrades. The towing performance is absolutely awesome, especially after coming from the tired old 1/2 ton I had before. If I drive reasonably unloaded at 75-80 MPH, I can consistently pull 20-22 MPG, which I think is awesome for a truck this size. Here's a list of the extras now on it, and a few pics.

265/75/16 load range E Michelin LTX M/S
torsion key lift
Rancho 9000XL shocks all around
AFE Stage 2 intake
EGR blocked
Dashdaq, plus EGT probe
PPE programmer set to #3, (525 HP, 890 TQ at the crank)
Transgo Jr. shift kit
TranSynd transmission fluid
Merchant Automotive stainless tie rod sleeves
PPE idler arm and pitman arm braces
Access Tonneau
GM bed rail covers
tinted windows 5% all around plus brow
Tekonsha P3 brake controller
NPI Catch-All carpet mats
GM chrome nerfs
aluminum chromed bowtie
Custom chrome wheel centers by Devries Signs
CIPA towing mirror extensions
GM synthetic fluid in both diffs and the tcase
Mobil 1 synthetic engine oil
GM updated rear cab mounts

It may still get a catback exhaust system and EFI live programming, but that's still up in the air. I love it the way it is, and don't feel the need to change anything else.

I know there is an eternal debate about which HD trucks are "the best". I believe they all have their strong and weak points. The GM trucks definitely have the most comfortable ride, which was high on my decision list when purchasing this truck. With the new shocks, it will ride as smooth as an old Lincoln down the highway if I set them that way. I can't believe that anybody that bought one of these would be anything less than 100% happy with it and would encourage anybody on here looking for a tow rig to get one too. If anybody wants any more info on it, just PM me and I'll help out as much as I can.

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Old July 13th, 2010, 09:31 AM   #2
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pretty truck!
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Old July 13th, 2010, 09:38 AM   #3
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Nice truck! Leave it just the way it is!
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Old July 13th, 2010, 04:55 PM   #4
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updated rear cab mounts ?? is this just on the crew cabs ? never heard anything about it
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Old July 14th, 2010, 08:40 AM   #5
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""GM Campaign #PIT3009J: Suspension Vibration Or Frame Beaming At 40-60 MPH (64-80KM/H) - keywords front rear shake shock spring tire - (Sept 18,2008)""


Beam shake vibration is usually felt and occurring at speeds between 40-50 mph (64-80 km/h). Hertz readings using an EVA tool are normally bewtween 8-24 HZ. This condition is most common on extended cab and crew cab models but has also been noted in other models.


The severity of the beam shake may vary from vehicle to vehicle. To determine if the concern is beam shake, please perform the following:

1. Test drive vehicle to confirm the condition. A beam shake condition will usually respond to concrete type pavements more than asphalt, so the vehicle should be driven over both surfaces if possible.

2. Place 200-500 pounds in the pickup bed between the closed tailgate and the wheel wells. A beaming condition should dissipate.


If the concern is determined to be beam shake, this a characteristic of the vehicle. GM Engineering has released updated body mounts to reduce this concern for the Crew and Extended Cab Models. There will be no changes made to the Regular Cab Models.


New upper and lower mounts should be installed at the left and right rear cab position. The new LOWER mount is a two-piece design, meaning there is a rubber mount with a metal washer. Some models may use a one piece lower mount, meaning the rubber mount has a metal washer molded into it. If the vehicle has the one-piece lower mount design, washers (PN 15854745, Qty 2) will be needed to be used with the new lower mount.

Upper Mount 25791031 Qty 2

Lower Mount 25791032 Qty 2

Washer 15854745 Qty 2 (if needed)

Please follow this diagnostic or repair process thoroughly and ccomplete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
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