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Old 12-06-2022, 03:42 AM   #27
Richard
Senior Member
 
Join Date: Dec 1999
Location: Southern California
Posts: 2,724
Re: Anybody using a 6l80 in their swap?

The flashing I mentioned of the TCM has nothing to do with the shifting or the type of vehicle it came from. The TCM communicates with the ECM over can bus. I was told by different sources that this communication cannot happen without specific information in "the OS" as you call it. The changes cannot be made with tuning. One of the reasons a stand alone controller and aftermarket control has been difficult for the newer gen 6+ speed autos. As said I chose to get all the parts from the same vehicle to avoid this complication.
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Richard
1972 K10 Custom Deluxe SWB Fleetside
My build https://67-72chevytrucks.com/vboard/...d.php?t=800746
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