I've got a "cheater" fix for you if the sag isn't TOO bad. Can't remember exactly but mine was sagging something like 3/4" on the left when I bought it a year ago.
If you have a post '95 with torsion bars, you can lower the right front torsion bar just a little -- about 1/4" -- and drive around for awhile. Once the vehicle settles into the new setting, the slightly lowered right front will release enough pressure from the left rear to raise it a lot more than the 1/4" you went down in the front. And you can't tell the difference in a measly 1/4" sag on your right front. It could even be that yours is sagging because your right front IS up slightly and you can't tell.
Give this a try. It really works! If you have an older model; I don't know, guess you could use different spacers or something in the front springs to acheive the same effect?....
Gerald
[This message has been edited by GJarrett (edited 01-21-2000).]