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TCM for 2009 GMC Sierra 3500 HD 6.6 Duramax w/ Allison 1000 transmission

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brucealsup1950
Trying to locate a transmission control module for this truck. Tried Google search and checked every source listed. GMC dealership says it is not available. HELP!
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19trax95
Allison TCMs are backordered pretty much everywhere. Been fairly hard to get lately.

Best bet is either used or searching the forums and groups on Facebook for someone that has a new one they'll sell
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