Ok thanks for all the input so far guys!

SW: Where is the thermostat in the 1980 300TD? I checked around but couldnt find it, friend who owns an Audi 4000 said he couldn't help me cause diesel cars have their own system for everything.

Aaron: Car bounces like MAD when driving, small bumps or potholes bounce the entire back end! Also, the previous owner told me he has had to replace the spheres about once a year. Is this normal?

Thanks again!

Anthony Ryan