My quick two cents. I replaced mine yesterday and the lowest price i could fnd locally was 212 at Oreilly auto. That came with an ABS sesor already installed. If you have time to wait for shipping and wanna save a few bucks here are the absolute cheapest i could find. Less than 130 shipped. I am positive that they will not be stamped made in the USA neither was mine for 212 at the local parts store and I am sure they come from the same line over in china. Very easy install took 1.5 hours per side and I did rotors and pads at the same time just because.

eBay Motors: FORD HUB BEARING F250,F350,F450, 4x4 absS-DUTY 515020 (item 190273948427 end time Dec-23-08 12:17:03 PST)=