Automatic transmission fluid and differentials

[Thrust]

I swapped the transfer case fluid and front differential fluid today.
Valvoline synthetic for the diff. They have the new quart bags which make it super easy to fill. Used Fram for the transfer case. Similar results with the plugs and amount of metal.
Tomorrow I'll work on the rear differential.
Thanks for the videos, makes it easier to do.

 

[Power_Dr]

I have a 2019 Yukon and I want to do a trans fluid flush when I change the filter, but I have read about the transmission thermostat that bypasses the cooler lines to the radiator until the fluid gets hot. How are you able to flush the fluid out from the top cooler line if the thermostat on the transmission is bypassed? I have watched the youtube videos of people flushing the fluid out of the top cooler lines. Do you have to get the fluid hot so the bypass is closed?

 

[Flyboygt]

Maybe I missed it, what is the quantity for the Transfer Case?

thanks for all the info here!