My 1985 300CD has sat all winter as various other projects and money commitments have preceded it. As the weather has started to warm then I have started to look at it again. While I have been working on some vacuum issues, I took it for a drive yesterday and again today and I believe that vacuum is not the most serious issue with the car.
Since I have owned the car there has been a persistent clunking coming from possibly the rear passenger side but it is hard to tell. When I start the car cold and drive off the noise is absent or very low but as I continue to drive up to interstate speeds the noise is more pronounced. Sometimes it actually seems to go away while driving but is always comes back fairly quickly. I can let off the accelerator and the noise goes away and it will come back when I accelerate again. When I first started reading the list, it seemed that the general consensus was probably trailing arm links. What is the most likely way to test for bad trailing arm links, flex-disk, or universal joint? Could it be a bad half-axle and if so what else needs to be replaced? Todd Smith '85 300CD 248K
