Methuselahs underpants... Can you make a /5 4sp gearbox tutorial?

Nice work, good info...I take it that the brass is compatible with GL5 oil, otherwise it would not be recommended by BMW or yourself.. Don't ever use a GL5 oil in a GL4 oil spec gearbox, destroys the softer metal which I believe is used on the synchros. How do I know? I am now starting to use Penrite oils in my R80GS.

Hi Mate, Have you seen this transmission fluid,Item #: 952560 Red Line V-Twin Transmission Oil with ShockProof I'm currently running it in my 75 R90/6 and 72 R75/5 with early model 5 speed. Seems to quiet shifts .It is advertised for Harly's transmissions

Thanks for the informative video👍