get some pictures
It's all of the above and more if yours turns out to be like mine. Get some free catalogs (Corvette Central, Ecklers for pictures and parts breakdown and purchase) and an assembly manual. You may need a steering wheel hub puller (highly recommended). While you are working on this assembly be sure to check your lower bearing (the race on mine had come off and worn through half the steering column shaft!). It's also a good idea to check your "rag joint" (steering column coupler) for wear and replace if needed. Your steering column tube will most likely be broken too. One thing to bear in mind......You only want to take this assembly apart once, so check and replace every part that needs it. Pack your upper bearing full of fresh grease too. After I went through my steering assembly, that car was tight! OH! OH!
Good luck, Montana