Hi,
I'm not sure what noise you are hearing. However, it is important to service the differential on regular basis to avoid bearing wear and damage.
If you look below, I attached a pic of the drain and fill locations on the differential (pic 1). All you do is remove the drain and allow the old fluid to drain out of it. Replace the drain plug and refill it.
Pic 2 shows the capacity and fluid type to use.
Because I'm not sure of the noise you are referring to, I attached a list of things to test based on symptoms. See pic 3 and hopefully one will mirror what you experience and help you.
I hope this helps. Let me know if you have other questions.
Take care,
Joe
See pics below.
Images (Click to make bigger)
Monday, March 25th, 2024 AT 2:10 PM
(Merged)