Harbor Freight
Some is junk, some is not. Since this is the Turbo Lounge, let me digress a little here...
I've installed 3 posi rears in my TR's. For some lucky reason all three TR's I've bought came with open rears. Since I have to pull the axles anyway, I go ahead and replace the wheel bearings too. The Chilton's manual tells you to use the axle to pry out the bearing seal. I kid you not. I did this on my first replacement, but I don't like the idea of using my axel as a pry tool. For my 2nd posi install I got a "seal puller" tool at Harbor Freight specially made for prying out these seals. Broke the first time I used it without even pulling the seal out.
For my 3rd time I used a slide hammer set from Harbor Freight. This pulled the bearing and the seal, but broke the bearing in the process. Little ball bearings loose from their cage rolling around on the ground and in the axle tube. I retrieved all that I could find, and the axle tube still had a coating of oil so the balls couldn't really roll back down. But I still had an awful feeling that 1 or more of the little buggers could be loose in my rear end, ready to grenade my gears.
So far so good, though.