So I have a 2001 4X4 F-250, w/ABS. The ABS light was coming on sometimes, and reading on the forum, I checked that the speedo was good, put it on the lift and found some slop in the left side bearings. Had a little noise on the right side, and found the inside of the manual hub was dry. grease was rolled up in little balls. Other than that the inner bearing on the backside of the hub that the axle runs in is frozen. Ford says it is only serviced with the entire hub, not avail from them. Also there seems to be some kind of rubber rings rolling around the axle on either side of the u-joint. Not leaking any grease, can't find any part numbers for them, or just what they are for. There is some kind of vent? hose coming from each steering knuckle ported into the area around the hub assy, that was missing on the right and had a break on the left. I suspect that allowed some water behind the bearing hub but does not seem to have caused any damage other than the stuck small bearing that the axle rides in. Is this just standard vaccuume tubing? When the Bearing hub assy is removed there are some thrust washers in behind, are those pieces available? One side shows some wear there. So I'm looking at two hub assys unless I can change out that one small bearing on the back side of the right hub. Any ideas or suggestions as to where to buy? O'Reilleys? Vatozone? Thanks for the help, Joe.