You'll probably need to match up part numbers on the bearings, and maybe use dimensional measurements on the seals. Some Brownies don't use seals- - - -they have a 'reverse helix" on the input and output shafts and oil slinger washers to keep the lube in the gearbox. They're extremely simple to work on, and they seldom give much trouble. I'd suggest just giving it a good cleanup and inspection and a fresh fill of lube.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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