[C320-list] Severe vibration at 1000 RPMs after engine mount replacement

[Dave Hupe]

 I agree with Dan.  My Perkins doesn't like running (especially in gear) below about 1000rpm.  When I am motoring/steering into my slip, I wind up shifting in and out of gear because I would prefer to motor slower  .... but it shutters if I try. 
Was your shaft realigned when the mounts were replaced? 
Dave Hupe
1994 C320 (#32)
Holland, MI