Could you analyze the sound a bit further? Specifically: is it constant or variable in pitch, frequency, volume, etc. If variable, what does it vary with: wheel rotations, engine rotation, vehicle motion, etc. Be specific about the sound itself: clicking is different from tapping (compare to other sounds you know). It may help to let someone else drive the car while you climb around listening. Bill Robertson #5939 >--- In dmcnews@xxxx, Michael T Twigger <marktwigger@xxxx> wrote: > Is this something to do with the drive shaft brakes or what?. > The Delorean and the rear engine setup is all new to me. >