Finally! After three months of sitting in my garage, and after
getting the brake work done, I take my recently acquired truck for a
drive, only to discover a very pronounced shake in the drive train.
I'm pretty sure it's not engine related as the engine runs well at
idle, and at higher rpms while in neutral. The shaking starts
apparently in fourth gear and I'm afraid of going any faster. From
experimenting it does not seem to 'shake' while there is torque on
the system (accelerating/climbing hills/etc) only when I let up on
the accelerator does it become noticable, and more pronounced the
faster I am going. Top speed tried: 45MPH. I was unable to determine
the location of the shake (and it is very audible as well) When I pop
it in neutral the shake continues. Once below 30 MPH, the shake seems
to go away.

Any ideas?

Mike
'51 3100