Like the sound of a blade....

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I replaced 2 wheel studs today on the rear axle of the same hub, and i'm not sure that every thing was put back on correctly, and as I was driving home I heard a sharp sound, sort of like the sound of a blade. When I looked inside the wheel, I noticed bite marks, which were spaced out equidistantly.
Would anyone know what the problem is? It would also help to know that I attempted to pop out the axle. This sound is kinda embarassing and it makes my Ex seem like a piece of junk. Thanks guys.

 

[Explo01]

Nevermind

Ok so that sound that annoyed the heck out of me... its taken care of. You see, when I installed the wheel studs, they weren't in all the way and when the tires would rotate, they rubbed the brake shoe spring (the parking brake). And so if you don't already know, I had to get into the differential to unlock the axle shaft and I hammered those suckers in pretty good, so there shall be no more noise. Getting into the differential makes me want to get a LS and lower gears. I wish I had the money for that!