You guys talking about this black piece? When i swapped diffs the DS was never removed. I should be jacking up the rear again one of these days to swap axles now and i will check it out just to rule it out. I did go back after i noticed the vibration and checked all my bolts again though.

Ever since i posted this and checked over my bolts like i said, I've driven it out to brandon once, work once, and around the house a couple of times. The only time its vibrated again was when i was pulling into my driveway coming home from work. I have torn boots on each of my axles and like stated, im swapping them too soon. Im kind of positive that axles wont fix it since i had driven it like that also and it never vibrated before the diff swap.

Can it be a bad diff? What are the symptoms of a bad diff?