Hi, I'm new on the forum. I have a '92 Legacy with air suspension. 
In ref. to the manually pumping up the struts/shocks: can I just connect
to each air line (the line right out of the strut) an adapter (probably
what is on the rim of a tire) and then just fill each strut with air?
If so, then what is the max. pressure for each strut?

OR

If changing to regular struts I've noticed that the configuration
near the top of each is way different. Looks like an air chamber as
opposed to a coil spring.

Can use some help on this as the struts have a mind of their own. Sometimes they fill with air sometimes not.

Welcome to the USMB, steveb.  Please post your questions in the "Newer Generation" forum.

ok