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Try squrting a little WD40 around the back of the hub where the CV shaft goes in.
That stopped my squeak.
When mine started, it would come and go while driving. It almost sounded like a belt squealing.
OK, I tried the WD40 trick, and it didn't work. I can see where the seal goes now. Is it very hard to pull the axle to put one in? It looks like just 6 bolts and the axle nut to drop out.