Does anyone know the part numbers for the drain and fill washers for the differential? I have some washers from the person I bought my car from, and they have P/Ns on them (one's silver, the other's copper colored) and I'm going to be changing my diff fluid this weekend or so. Just want to make sure these are the right ones. Thanks.

 

The copper washer is for the fill plug and the aluminum one for the drain.
pn 90402 PCI 003 is the fill plug washer.
pn 90401 PCZ 003 is the drain plug washer.
Torque both to 33 foot pounds according to the factory manual.
Fill plug 23mm wrench.
Drain plug 24mm socket.