Adding Differential Oil
#2
A gasket, half inch wrench set and a pump. Lift the rear of the car. Unbolt the bottom five bolts. Let it drain into a oil pan. Take other five bolts out clean the surfaces and put cover with new gasket on. Take your half inch wrench without a socket and undo the filler plug on the passenger side of the diff. Pump oil into the diff. When it starts to drip out put the plug back on and take it for a gental drive. That's how you change. I don't recommend adding oil unless it under 70k since last change.
#3
gear oil like 75/90 or 80/90 and a rachet. at least last time i took the plug out a rachet worked. get the oil in the bottle with the pointed end so you can get it in without to much mess. you probly have 80/90 in it so thats most likely what you should use.