so I'm part way into my rear axle overhaul and yeppers..... looks like the bearings were running in gear oil. : foamy white gear oil that looks H2O contaminated at that opinions??? anyway, the trick with the impact driver for the lock washer worked like a charm!!! after a few good whacks, both phillips came right out!! I was starting to strip the first one I was playing with before swiching to the impact driver. I was even using a good snap-on phillips!!! The lock nut turned off by hand.... this lock nut system is a little different than the *star* folding washers on the front!!! So....to the point of my post I got down to my bearings and find that the cage holding the rollers is blued like a rifle!!! It is totally uniform though, and both are exactly the same color. Is this normal, or are they heat damaged??? I know my new Koyo front bearings weren't blued..... also, the bearings don't looked chewed up, they actually seem ok (but what do I know... ) Should I spend lots o' money on new bearings???