

Glitter in rear diff fluid
We were getting creaking or rubbing sounds from the rear axel at slow speeds on our '11 E90 328i Xdrive (62k miles) and spent the morning troubleshooting.
With a cheap Amazon stethoscope, I found a clicking sound coming from the passenger (right) side of the rear diff.
Upon changing the diff fluid, it was glittery with a few .5 mm chunks.
Looking like I need a new rear differential.
Any guess on the cause? I changed the fluid a year ago (Delvac 75w90), I do lift the car by the rear diff a few times a year.
How difficult is this as a DIY job on jackstands?