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Old 04-01-2013, 02:26 PM   #2
Wasted Income
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Join Date: May 2002
Location: Mackinaw, IL
Posts: 2,200
Re: 4L80e shifting trouble

I've used a 4L80E behind a 5.3 and it worked just fine. I did a segment swap to use the transmission calibration from a truck with an 80E. Using the 5.3 ECM shouldn't be a problem (since they are all pretty much the same ECM)
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