I'm at over 42Kmi on my 2008 GLS AWD 2.7L and it saw rental service early in it's life so I figured it was a good idea to get this done. Having already done the transmission drain/fill and transfer case, this was by far the simplest and quickest. I used a 21mm socket for the drain & fill plugs and dropped the spare tire to make for an easier fill, right out of a quart sized gear oil bottle directly into the fill hole. The factory 70w90 definitely came out darker than the T-case oil did with some gray streaks in it, plus there were a few tiny, shiny shavings on the drain plug magnet, where I didn't notice visible shavings on the T-case or trans plug magnets, just black goo. In went a quart of Walmart Supertech 75w90 synthetic blend gear oil. Just shy of a qt came out. It was a good chance to clean up the dirt/stones crusted up on the spare tire and grease the cable winch for the spare. My "compact" spare is a Kumho! I never noticed spares with name brands on them before.

(IMG:http://i85.photobucket.com/albums/k65/mtpockets06/031-2.jpg)
(IMG:http://i85.photobucket.com/albums/k65/mtpockets06/032-3.jpg)

Joel

Thanks for the pics and the info on the socket size used Joel! Did you have to replace any gaskets or use any sort of sealant on the plugs?

Both plugs had copper washers that were in such good shape, I reused them. The drain plug had a red thread sealant on it that made the drain plug come out with some resistance. I just cleaned it up and reinstalled.

Joel