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Old 07-19-2009, 08:33 PM   #15
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The Duramax/Allison is outstanding, and even better if you add the Bully Dog computer chip. Just drove mine home from Tennessee to Alabama this afternoon, and got 25.6 mpg at 65 mph with the bully dog turned up about a quarter turn. Awesome power and performance in my 2003 Silverado 2500HD.

As for putting a diesel engine in a former gas truck--I think you'll find there are some major suspension changes that will have to be made also. The diesel is way heavier. And yes, it is about $10K more than the gas engine when new.

Good luck!

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Old 07-20-2009, 12:19 PM   #16
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After looking into it, I think we'll pass on converting an Airstream coach. Too much other stuff going on in life to spend that much time on it. It's too bad Airstream choose the generic P30 chassis for their coaches instead of a custom chassis like the GMC's.

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