Anyone know where I could sell a non-functional power antenna to a rebuilder. Motor still works, but won't go up or down.

You have a problem. It won't go up or down because the nylon cord between the mast and the motor reel is broken. You need a new antenna or one from a wrecker.

If your mast is physically broken, you can buy a new one from www.gmpartsdirect.com for about 12 bucks. When I got my wrecker antenna for the same reason you need one, I also replaced the mast with a new one. You can do this entirely on your own.

I already know that. I bought Wolfmeister'* working one, and was wondering if there was a way to get some money for by busted one.

Probably not. It'* not really repairable by any means. You can't get the cord/top section of mast from GM.

Well, yes and no. I repaired mine after the core broke by tossing the broken stub (the core broke at the bottom where it attaches to the reel, not higher up) and making a new attachment point for it, so the antenna works again although it'* about 6" shorter than before.

I'll have to dig out my notes on that; I wrote them up a long time ago but I don't think I ever posted them...?

I hit a dead end trying to replace only the core via ordering parts from the dealer; I _think_ that $12 purchase from GMPartsDirect refers to the outer mast, not the core, doesn't it?

That'* correct, Andy. The two hollow lower sections of the mast, and 2 new mast finials. One black, one chrome. Also the tool to make the swap, and the grease to re-lube it.