I'm in Northern VA and the RAV4 is in Knoxville,Tenn. I'm planning a trip to see my #2 daughter and plan to do a fluid change in her 2004 4WD- engine oil, diff and transfer. I've done the engine oil before so I have the proper type and size wrenches packed. Can someone tell me what size and type of wrenches I'll need to do the diff and transfer? I want to make sure I bring the right driver, sockets, open end and box end wrenches with me ..... Thanks