Hey folks! I as changing the differential fluids in my wife's 2019 IS300 AWD. The front differential fill plug was tricky to get to but was doable with some patience and the rear differential was pretty straight forward. I was looking to drain and fill the transfer case but I dont see any drain or fill plugs. Its attached to the back of the transmission. I see theres a small black pan...but thats it. Does the transfer case share the same tranny fluid with the transmission for lubrication? Smy insight would be greatly appreciated. Im sitting here scratching my head.

 

It bolted to the transmission. Just do the transmission drain and fill. Since you did both diff fluid your all set .

 

Thanks! I actually did 3 drain and fills to get as much of the old stuff out. Thought maybe that would help with the hard shifting from 2nd to 3rd, but no dice. But thats a different problem. Thanks for confirming.