[pjmoreland]

The end caps/bushings have internal and external threads that must be threaded onto the shaft and into the LCA simultaneously. Both end caps have to be threaded onto the shaft evenly on both sides so the shaft is centered between the caps. Once assembled, the shaft is able to spin because it rides on the threads in the caps. On my truck, one of my LCAs was bent, probably from striking a curb during parking at some point before I got it. The cap did not want to thread straight into the LCA because of this. I had to acquire a replacement LCA. Does it look like the cap is threading straight into the hole in the LCA? It would be easy to cross thread since the threads on the outside of the cap are shallow.