Ok, I've looked in my Haynes manual, but it only describes changing the outer end. I need to replace the inner end. In the manual, it shows me needing a two pronged gear puller to pull the outer off, then i can unthread it. For the inner end then, it is a male threaded end, and the other end is a large ball joint sort of end. It has female threads. This whole end is encased in a rubber boot. Ideally, it is as simple as removing the outer, unscrewing the inner, and screwing the new one in. So, what else can i expect?