Help Replacing Washer on OutdoorOutdoor Faucet

[Summer Wind]

I have a Prier outdoor faucet that leaks from the handle when I turn it on. I believe this is the model.

I want to replace the washer, but I'm having trouble removing the stem. As I unscrew it, the stem comes out about an inch, but at that point it turns without coming out any further. Is there a trick to removing the stem?

Thanks, SW

[buffalobill]

could be frozen? stripped threads? just replace the whole thing? for replacements also see hdsupply.com virtual catalog pg 230