Clutch Disk Replacement

I have a 2005 Silverado 2500HD with the Duramax Diesel & the 6sp manual transmission. The 6sp manual may be a bit old fashioned, but I enjoy driving it.
I tow a 13,000 pound 5th wheel RV behind the truck about 1/2 of my mileage. The dealer tells me that I can expect a clutch replacement at about 100,000 miles. He will use Chevy's standard repair kit with the standard clutch disk.
I want to know if there is an extra heavy duty clutch disk available for my truck. I'd prefer a genuine Chevy part, but a reliable aftermarket part would also be ok.
Does anyone know of an extra heavy duty clutch disk that will fit my truck?
Thanks in advance for your help.
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On 16 Mar 2007 01:06:18 -0700, no snipped-for-privacy@nordquist.us wrote:

GM redsigned the clutch and flywheel in the summer 2005 for 06 models. (the Dmax is a externaly balanced motor with a "laminated" flywheel of sorts because of this) The new flywheel and clutch will retrofit on older Dmax. If you do replace it, do use the upgraded parts This aside you need to remember that with any high torge engine, you do not want to slip the clutch much at all or play it iunder load because a lot of heat is generated from this. Keep RPMs low and get full engagement as soon as possible and use a deeper gear to avoid playing clutch (this is why semi have such deep first gears so they can get rolling with little clutch action because you can fry one quick in one of them if you try to play the torque in a higher gear slip it too much under a high load) ----------------- TheSnoMan.com
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wrote:

Your Duramax has a low first gear too. Use it. And like Snow said, don't slip the clutch. Get the clutch out, then add the torque. You can easily get over 100K miles out of it.
Al
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road with little or no load in t he truck. If I'm on a steep hill or heavily loaded I always use 1st gear to get moving. Slipping the clutch seems to be a dumb thing to do except when I have a fully loaded truck, 13,000 lb trailer, and starting off on a hill. Then a small amount of slipping seems necessary. I stress a small amount.
My clutch failed towards the end of 2005 with about 12K miles on the truck. The repair was under warranty and amounted to replacing the flywheel with an upgraded version. The fix was to "Replace the flywheel assembly with a Dual-Mass Flywheel, P/N 24232434." This quote is from Bulletin 04-07-31-006A. Would this have been the redesigned flywheel your message referred to?
Dave
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On 16 Mar 2007 12:30:10 -0700, no snipped-for-privacy@nordquist.us wrote:

I need to recheck my data as it could have been June 2004 when they did it but I am thinking June 2005. I never read the bulliten but I did read about it before it went to bulletin. (I read some inside industry news a lot and try to watch for the things they change but do not talk about) The old flywheel was a dual mass too and they had problems with the rubber layer between the masses (kinda like a harmonic balancer does) breaking down from heat from people cooking the clutches. I once saw a guy cook one on a Dmax playing around with trying to crawl over big curb in second gear in 4x4 from a stand still while resting front tires against it. It did not take long. If he had used 2wd it would have likely just spun tires and saved clutch (or if he had used 1st or low range ) ----------------- TheSnoMan.com
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Dave,
What happened when the clutch failed? You were doing what with the truck?
Al
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The failure occurred before I bought the 13,000 lb RV. In the winter mornings as my wife & I went to work, I'd let the engine idle with the heater running to keep her warm as I went into a deli to buy breakfast.
I noticed that with the transmission in neutral, when the clutch pedal had been almost fully released - past the engagement point, but just before I took my left foot off the pedal, I'd get a really horrible rattle out of the clutch. I wasn't doing anything - the truck was just idling with the heater running.
Dave
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wrote:

truck?
That's interesting. Snoman was probably right about the flywheel coming apart. Some friend of mine was trying to impress me with his Duramax so he took off from a dead stop in third with a trailer and a back hoe. Killed the flywheel. But I think it should have:)
Al
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