if you can wait until monday or tuesday next week for an answer, i can tell you?
i have a 200,000km old gearbox, and am putting some redline lightweight shockproof into it on Sunday...
currently the gearbox is very notchy, and will crunch if you do a quick change high in the revs. Also whines a bit.
I'm hoping with the Redline oil, it will quieten down a bit and make changes a bit easier!
my diff also single-wheels alot, and whines like a bitch, as its just as old, and i am putting some Motul Gear300 into that to see how that goes... i'm not expecting it to fix it singlewheeling, though i'm hoping it might quieten it down a bit.