Actually, not all had the load-leveling suspension, I respectfully submit...the first thing you need to do is determine if you have this system (you'd notice that there's an extra fluid reservoir under the hood, with a decal specifying hydraulic fluid). If you do, you're really best served by changing it with the proper replacement; otherwise you need yto close off a big chunk of that particular hydraulic system, and vehicle handling instability WILL be a result!
Wish I had better news....perhaps you lack load leveling, and in that case the shocks are comparatively cheap. Good luck!
Best regards, Michael