We have the left end of the axle apart and a quick question on the condition of the knuckle--it's a little rough and slightly pitted--does it matter? Please take a look at the pics! BTW--something from La Brea Tar Pits came out of the diff. Yuck. And the slop in the knuckle was pretty disgusting. First pic is the front of the knuckle. Second pic is the back. Thanks!