Hi
My car is 1985 300D Turbo. All the shocks are still the originals.
I plan to replace with the Bilstein hevay duty type. They are pretty expensive, so I have some questions:

(1) If I can afford to replace only one set at this time, should I replace the front or back?

(2) How can I tell if the shocks are really bad? (I assumed they are not any good in a 20 year old car)



Thank you