2020 with 10L80 transmission: how to fill fluid?

[persistent]

i'm almost ready to test my dod delete work, and i need to refill my transmission fluid. i have 12 qts of dexron ulv on hand and another 5 qts ordered.

i had the radiator/cooler disconnected and drained the transmission fluid from the pan and replaced the filter. i had to undo the 8 mm hex fitting on the left side of the transmission pan to drain it.

i see comments that suggest there should be a fill/vent plug on the right side of the transmission pan, but i couldn't find it on the 10 speed transmission. additionally, i don't see a transmission dip stick in the engine compartment. i only have the service manual for the 6 speed transmission, so i can't find good manual info for the 10 speed.

can someone give me input on the fill process for this transmission? i would like to do a flush while i'm at it, but that seems pretty challenging to do without a dipstick tube for the filling.

 

[persistent]

looks like the game is to do an initial fill to the bottom of the fill plug, close plug, start engine, and continue filling until you get to the bottom of the fill plug again. flushing requires going back and forth with adding fluid via the fill plug on the bottom and removing fluid via right/output transmission cooler line in the radiator.

what a pain.

 

[Doubeleive]

looks like the game is to do an initial fill to the bottom of the fill plug, close plug, start engine, and continue filling until you get to the bottom of the fill plug again. flushing requires going back and forth with adding fluid via the fill plug on the bottom and removing fluid via right/output transmission cooler line in the radiator.

what a pain.

you can retrofit a dipstick