Originally posted by PaulC
An afterthought: Does the STS have a load-leveling rear suspension and/or electronic shock valving? Potential $$$.
From what research I've done the 95 and newer STS has a re-engineered version of the electro shock valving suspension as standard equip.
I've called a few dealers and they've told me that it isn't as much of a problem on 95 and newer models as it is on 94 and older ones.