Ok I was poking around under the truck today since I brought it in to have the tire rotated and chassis lube. I noticed a few things 1) amazingly few zirc fittings as a matter of fact I found only two on the u-joints for the front hubs and 2) there is a rubber seal that appears to be loose in the area where the axle shaft penetrates the axle tube. It's just kinda hanging there. I would love to know if that is supposed to be that way. there is another seal that is installed on the axle shaft itself that looks like it is intended to ride up against the one that is loose. If needed I can post a picture.