[patrickt]

And in fact I don't use the plug at the bottom -- those tend to leak when you put them back in, even with the anaerobic sealant on the threads. I pump the old fluid out through the fill hole using surgical tubing, then I put pipe tape around the threads so it's easy to get the plug out the next time and that still keeps it from leaking. Remember to use your LSD additive along with Moroso climbing gear lube. The last time I did mine I needed about 1 and 3/4's bottles of the GM Limited Slip Additive Part #1052358 to eliminate ratcheting around corners when the Powr-Lok plates would disengage.