For an oil change-13mm wrench/socket,filter housing and drain plug.Transmission should be a dipstick,when cold it'll just show on the dipstick,don't overfill and check after you've been on the road an hour or so.Rear diff is a 14mm allen head socket,buy a 1/2" drive as you'll need the leverage probably.A multimeter might be a good thing also
Good luck!!