If you are following this nightmare, here is the most recent update. Yukon sent me a new axle all pressed together correctly.

We installed it without a hitch, and now rather than the abs and traction lights coming on some times, they come on all the time. I didnt make it out of the driveway.

I dumped oil over the berring before intalling it, so I may have splashed some oil on the sensor. Took it out cleaned it, put it back, same problem. Took it out again, more oil on it.

Im going to let it settle over night, since im exhausted. and fire it up in the morning. Hopefully this problem will be over.