Look here:

http://www.koni.com/_cars/_sport/htm/fordamer.html

Then here:
http://www.koni.com/_cars/_general_info/technology/_images/identifying.gif

And you'll see that the struts (8710-1368s and 8710-1297) for our cars are non gas charged.

And you'll also read how adjusting the rebound effects the compression dampening as well. You'll have to dig around a bit..its not that well laid out.