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For those who don't know...
Here's a site with some healthy Tech Tips for the Duramax and Allison.
http://www.gmtcny.com/tech_tips.htm
Edited by: Mic_
Here's a site with some healthy Tech Tips for the Duramax and Allison.

http://www.gmtcny.com/tech_tips.htm
Edited by: Mic_