I actually just replaced mine on Thursday. It had completly gone out while I was driving. I found mine at Autozone for $189 with a $50 dollar core charge. It's actually an easy fix if you buy or a rent a pitman arm remover. There's only 3 bolts connecting it to the frame, 1 connected to the steering column, and the two hoses to connect on the top of the box. Let me know if you have any questions.

Ken

 

I found the PSC ones, not from Poisen [:'(] Still dunno if I'm gonna go with one since they're $300 and the site said nothing about a core charge. And since they make these themselves from scratch, I don;t see how they would need it for a core.