You will find a 12 point pinch bolt (7/16" socket IIRC) that you must remove then the rag joint will slide off (you might have to pursuede it some).
inside the rag joint center or on the neck behind it?

Now I am stuck on the seal...I got the rubber washer out but the thing behind it won't come out:
I replied to your other thread about the steering shaft. Also you have the dust shield on backward although it really doesn't make a difference as long as it doesn't interfere with the rag joint or XJ shaft going back on.