I thought the 3rd time disassembling and carefully reassembling the torque tube ball would cure my leaks but I have been less than successful. Although it hardly leaks now, at least what I can see on my garage floor, I have no idea if and how much it may be leaking while driving. If I stick something flexible into the fill hole to measure oil level is there an acceptable level to run it at before refilling? If I hadn't been so optimistic about 3rd time being the charm I would have measured it after the initial fill and had a better idea of what it should be.