So what's the poop on my "sealed-for-life" front wheel bearings? How long is "life"?? Until the rotors go below minimum minimum thickness? Should I start a trust fund now? I couldn't believe my GM-driving buddy (he really DOES know better) when he told me his spindles and rotors are throw-away units for that very reason. Just unbolt the whole rig from the A-frames and pitch it! And now I find out I have the same thing?! 
