Brewcrew
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I recently placed a 1994 4L80E into a 2002 Avalanche 2500. The cooler lines had to be shortened to accommodate the new transmission, as well as the shifter shaft etc. Now the new trans keeps running hot after an hour or so. I want to retrace my steps and make sure I have things hooked up correctly. Is the oultlet of the transmission that goes to the cooler inlet, the bottom or top fitting on the casing? I have read several forums, and someone suggested that without a doubt the circulation loop for the 1994 4L80E is the opposite of the more modern version.