So this "Birfield Soup" is most likely what is running down the inside of both my front tires? I thought MAYBE it was brake fluid as crappy as my brakes work. If it is the soup then do I need an entirely new knuckle service kit or can I just replace the inner seals and clean up the knuckles? Or would I need the knuckle service kit to open up, clean and regrease, and put back together the knuckles anyways? Sorry... I'm quite the 4Xnewb but trying to learn all I can.