I have worn out one thrust bearing in my DB01, and I bought this when the car was first released, so the thrust bearing was very old.... When rebuilt, the thrust bearing was cleaned through, and well packed with grease. Do that, and they last ages and ages, if you skimp on the maintenance, even Ceramic bearings collapse.
I don't like the price of the replacements though, in the UK.
Also, if your diff is built correctly, bedded in, and adjusted, it should barely need adjusting, if your constantly fiddling with it, the nyloc on the nut, and the screw need replacing, and they must be changed in a pair.
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