Sry.
I replaced a messed up u-joint in the rear shaft at the differnetial. It was garbage, one post was ground down insanely, another had the roller bearing completely disintegrated.
After replacing the u-joint and putting the shaft back in everything feels/sounds fine now.
I have to imagine that is what the problem was.
Not positive, but I am not complaining either since it appears to be fixed. Wish I knew for certain, but since after replacing ujoint and reinstalling shaft sysmptoms disappeared, that 'must' have been the issue.
Good luck on figuring out what your issue is. Hopefully just a u-joint like me. Cheap and easy fix
