Pinion Angle/Tailshaft Bushing

I don’t see an issue with driveline parallelism to the vehicle centerline. What is more likely is one of the motor mounts sitting higher than the other in my case.


After lots of time to determine exact symptoms, the problem isn’t really noticeable on acceleration or amplified on deceleration (only noticeable on deceleration when coasting down from the speed/engine speed that it is most noticeable at). Definitely most noticeable when achieving a steady speed of 55-70 mph in 4th gear, which is 2000-2600 rpm. If acceleration out of that range, the grumble doesn’t seem magnified. Lastly, above 2600 rpm/70 mph, the grumble from the front is less noticeable altogether, anywhere from the shifter handle, steering wheel, and through the accelerator pedal.