Obtain an angle finder and know for sure.OK, so the project was on hold for a few months. Finally decided much of the cause had to be 60-year-old week rear springs. So took the plunge installed new springs made by Detroit Eaton Spring, and they have made a very significant difference. The shuddering upon acceleration is gone and the vibration at higher speeds has also been eliminated. HOWEVER, there is still a drone around 35 miles an hour and again from 45 to 55 mph.
Plan is to go ahead and install the 2° wedges that I ordered on the theory that we seem to be moving in the correct direction. (I have been scratching my head, wondering why the new springs didn’t eliminate the issue entirely but so be it.) Question, would you start with 2° wedges or perhaps 4°? Don’t want too much or too little. I have a feeling this will be a trial and error process. Any suggestions or ideas?
Mike