Hello fellow S2000 owners,

I have an S2000 AP1 from 2000 with 90'000 miles and the other day saw some oil on the floor in my garage: I have a small oil leak on the rear differential, passenger side.
Since the differential needs to be dropped to replace the three oil seals, I wanted to know if they are other parts I should change as preventive maintenance: I can hear some faint hissing while driving on the highway.
The rear axles seem ok: no vibrations under strong acceleration. Note: the car was on coilovers before, and I had them replaced by ohlins and the car put back to factory height (axle spacers are still in place)
I was wondering if the rear differential mounts should be replaced while doing this work.
I don't mind doing some extra work on the car, last year i did quite replace a lot: ohlins coilovers, semi-racing brake disks/pads, new oem brake calipers, goodridge brake lines. This year new exhaust Invidia Q300 (Very limited legal choices in Switzerland, I may replace it and go back to oem because of the drone)
I'm planning on keeping the car.

Thanks for your suggestions.