Originally Posted By: Kestas
As to why you're experiencing this multiple time, this is hard to say. Here is a list of things to consider:
- overtightening the hub nut
- hammering on the hub
- nicking the seals
- cheap aftermarket bearings (I don't trust anything other than OEM)
And that (along with saving a boatload of money) is why I plan on doing it myself this time.
Originally Posted By: Kestas
It is true that removing the engine grounding strap can cause bearing failure from electrical erosion. The most famous case I know of is the early Omni/Horizon models of 1978 that were recalled because of grounding strap corrosion.
Oh, so that is what Chris142's ground comment meant! I admit that he lost me there due to my own ignorance, so I decided to ignore it.
I will check for proper grounding. The wheel speed sensor wires broke a few months back and I just repaired them yesterday. Could that broken circuit or the bare wire ends hanging out in the breeze contribute to electrical erosion? I am functionally illiterate when it comes to electricity, so feel free to laugh if that question is ridiculous.