I have the same problem for few years and nobody can find the cose. I had 4 new springs and 4 new shocks put on 2 years ago and the problem is still there! Strut pads are also the same size. The driver side in front is lower than the pass. side noticeably. One mechanic even told me that this is happening becouse I drive almost always by my self with no passengers wich causes the left side of the car to be under load???
Let me know Francis if you have solved the problem.
'88 300 CE, SIGNAL RED
with 18" Carlson