Drain/Fill plug sizes on 2007 Yukon

I'm only asking because I don't want to take my lazy butt outside and crawl around in the snow to find out for myself.

I'll be taking my Wifes 2007 yukon to my place of work and change the axle lubes and transfer case fluid in the nice warm shop. Without taking my entire tool box to work with me, I want to know if someone knows off hand what size tools i need for the job. I've done this in the past on my 2002 gm full size but fail to remember.:confused:

Thanks for the help. Brian

here's my best guess by memory

rear diff fill plug is a 3/8" square drive, not sure on the drain plug...10mm hex?

depending on which tcase option you have either 18mm wrench or 10mm hex

front diff 15mm fill and 13mm drain.