Aaron, it is a 25 year old car!! Bilsteins are good but, they don't do miracles. Rattling does not sound like a shock problem to me. Come on, be realistic, all the rubber pieces in your car must be dried by now even if the car was stored all this time. Just take your time to check and repair all rubber around your car (specially the suspension)a few parts at the time. OTOH, the HD bilsteins would have made your rattling more noticeable.