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Old 09-15-2008, 06:57 AM   #1
kdeiss
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Chevy HD Transmission

I noticed in the 2008 Silverado Literature they are referring to the transmission in HD's As 6 speed Hydromatic no mention of Allison.
Can some one give me an update

 
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Old 09-15-2008, 07:30 AM   #2
HughM
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You have to get the Duramax to get the Allison transmission. You might have been looking at a gas literature.
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Old 09-15-2008, 08:58 AM   #3
wswebster
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yep, the only the duramax comes with the allison.
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Old 09-15-2008, 09:40 AM   #4
kdeiss
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Yes I am aware of that but in thei literature i just received no mention of Allison with Duramax
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Old 09-15-2008, 09:52 AM   #5
SlickWillie
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If you go on the GMC site and build your vehicle, when you select the Duramax it will show the Allison transmission.
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Old 09-15-2008, 10:08 AM   #6
HughM
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Ask the dealer for a commercial or heavy duty truck brochure. There won't be a 1/2 ton truck in the brochure, its all H/D 3/4 ton and up. It will show Duramax/Allision.
Thats what I had to do when I bought mine.
I asked a salesman first about a diesel truck brochure and he brought out a 1/2 ton standard truck brochure. I asked him to show me the H/D section showing the Duramax/Allision combo. You would have thought I asked him about describing a black hole in space!
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Old 09-15-2008, 12:05 PM   #7
Delaine and Lindy
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Talk to the Fleet manager he will be able to answer your questions. He deals in the HD side most of the time. GBY......
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Old 09-15-2008, 02:48 PM   #8
kdeiss
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Thanks guys I had an Allison for 6 years no need for a new one. Just wondering why it was not in the literature thought they made a change. Nothing other than an Allison would support the torq
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