azdryheatExplorerMay 28, 2021Tranny fluid changeGot 70,000 miles on the current ATF oil, so today it and the spin-on filter got changed. I also dropped the pan to see if there was any sludge and it was clean. Love this Duramax/Allison combo.
Grit_dogNavigator IIIJun 01, 2021Man, some of you guys are just incessant! That said, 12V, why couldn’t you do a trans fluid replacement like any other trans via the cooler line?
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