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#1
01-02-2009, 12:46 AM
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Rear end or drive shaft clunk?
This question is pertaining to my wifes 4x4 2006 CC 1500. Im hoping someone may know.
Shes been grumbling to me about the a clunk coming from under her truck, in the past it wouldnt happen for me so i just assumed she didnt know what she was talking about. Tonite when I was using the truck it happened, it happens with acceleration definitly under the middle of the truck i went under there and the rear drive shaft has a little play on it. It doesnt happen evrytime but it did do it twice for me, Any ideas? comments are greatly apprecitaed thanks in advance!!
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 2005 3500 Duramax Crew Cab DuallyJ S 2 T Z U Engraved S&B cold air intake 4 inch Turbo Back MBRP Exhaust System with 6 inch tip PPE Economy Xcelerator PCV REROUTE EGR Blocker Plate Mag Hytec Rear Diff Cover AMSOIL Synthetic Front to Back Alcoa Hot Shot Wheels Tinted RECON L.E.D. running lights 5% tinted windows B&W flip over Gooseneck hitch 
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#2
01-02-2009, 01:37 AM
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Does it just clunk once or repeatedly?
Is the play in the U-joint or in the yoke coming out of the transfer case?
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07 LBZ CC SB 6" Fabtech lift, EFI Tuned, Stock Fuel, S464 Turbo, Stock Clutches + Ally Jr. Shift Kit and ATS JunkStar ConverterSomething is Broken........ 
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#3
01-02-2009, 02:04 AM
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Quote:
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2005 3500 Duramax Crew Cab DuallyJ S 2 T Z U Engraved S&B cold air intake 4 inch Turbo Back MBRP Exhaust System with 6 inch tip PPE Economy Xcelerator PCV REROUTE EGR Blocker Plate Mag Hytec Rear Diff Cover AMSOIL Synthetic Front to Back Alcoa Hot Shot Wheels Tinted RECON L.E.D. running lights 5% tinted windows B&W flip over Gooseneck hitch
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#4
01-02-2009, 02:25 AM
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So knowing that you are in Hawaii we can assume this was in 2wd?
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2001 GMC 2500HD
BD-Power 4" Duals EFI Live V2 AFE Stage 2 Intake Suncoast Stage 4 Tranny & McRat Converter- Special thanks to Mike L. HTT Turbo FASS 150GPH 530hp and 1000 lb.ft daily driver Max Dyno 569hp and 1260 lb.ft Tuning by Adam(Malibu795)
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#5
01-02-2009, 02:28 AM
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Is this truck lifted? How many miles on it?
Sounds more like a suspension issue or a loose bolt somewhere then a driveline problem unless it is something inside the T-Case. Maybe a loose mount for the crossmember or torsion rod mounts. Loose mount for the T-Case maybe? Worn out mounts for the engine or Transmission? The fact that it is intermittent and only under acceleration makes it tough to diagnose-especially over the interwebby!! 
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07 LBZ CC SB 6" Fabtech lift, EFI Tuned, Stock Fuel, S464 Turbo, Stock Clutches + Ally Jr. Shift Kit and ATS JunkStar ConverterSomething is Broken........
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#6
01-02-2009, 08:46 AM
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the truck is stock height with close to 40k mileage. I did crank up the torsion bars a while ago to level out the truck. And im pretty sure there maxed out.
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2005 3500 Duramax Crew Cab DuallyJ S 2 T Z U Engraved S&B cold air intake 4 inch Turbo Back MBRP Exhaust System with 6 inch tip PPE Economy Xcelerator PCV REROUTE EGR Blocker Plate Mag Hytec Rear Diff Cover AMSOIL Synthetic Front to Back Alcoa Hot Shot Wheels Tinted RECON L.E.D. running lights 5% tinted windows B&W flip over Gooseneck hitch
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#7
01-02-2009, 08:46 AM
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Quote:
__________________
2005 3500 Duramax Crew Cab DuallyJ S 2 T Z U Engraved S&B cold air intake 4 inch Turbo Back MBRP Exhaust System with 6 inch tip PPE Economy Xcelerator PCV REROUTE EGR Blocker Plate Mag Hytec Rear Diff Cover AMSOIL Synthetic Front to Back Alcoa Hot Shot Wheels Tinted RECON L.E.D. running lights 5% tinted windows B&W flip over Gooseneck hitch
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#8
01-02-2009, 08:58 AM
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It did this taking off from a stop or while just driving along???
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Mitch 02 Chevy 2500HD D/A EC SB LS SCIII & X-Case brace by MA, Team Salad tuning  & Trippin's DSP5, 4" Diamond Eye exhaust, Fumoto Valve, 5% tint, partially debadged  , Rhino Bed Liner, Cheap Junk Air Intake, SuperDiesel Intake Manifold and Ported Turbo Inlet, 16x8 Eagle 194s w/ 265s1983 GMC K30 CC SHORT BED  4wd pulling truck awaiting LBZ Dmax/ZF6 conversion... 
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#9
01-02-2009, 09:00 AM
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Quote:
__________________
2005 3500 Duramax Crew Cab DuallyJ S 2 T Z U Engraved S&B cold air intake 4 inch Turbo Back MBRP Exhaust System with 6 inch tip PPE Economy Xcelerator PCV REROUTE EGR Blocker Plate Mag Hytec Rear Diff Cover AMSOIL Synthetic Front to Back Alcoa Hot Shot Wheels Tinted RECON L.E.D. running lights 5% tinted windows B&W flip over Gooseneck hitch
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#10
01-02-2009, 11:33 AM
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Sounds like the only way for this to get figured out will be when you send over some plane tickets so we can come and hear first hand what's it's doing. It's hard for me to try and think about it when it is 18 degrees and snowing like hell outside.
Phil
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#11
01-02-2009, 11:53 AM
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Quote:
 thats a good one! check ur mailbox cause the tickets are coming!I know what ur talking about its 74 degrees outside right now and i can hardly think!
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2005 3500 Duramax Crew Cab DuallyJ S 2 T Z U Engraved S&B cold air intake 4 inch Turbo Back MBRP Exhaust System with 6 inch tip PPE Economy Xcelerator PCV REROUTE EGR Blocker Plate Mag Hytec Rear Diff Cover AMSOIL Synthetic Front to Back Alcoa Hot Shot Wheels Tinted RECON L.E.D. running lights 5% tinted windows B&W flip over Gooseneck hitch
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#12
01-02-2009, 05:41 PM
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Quote:
Phil
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