I believe there are 6 zirk fittings, 2 u joints for the front and one slip yoke and 2 u joints for the rear and 1 slip yoke. I am aware the the u-joints get grease until it comes out the sides, and that the slip yoke should not be overgreased. However, I can't find a difinitive pic on where each one is located so I don't mix them up?