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Hello,
Can anyone please help me with what parts I can use from other models ie b5 etc to rebuild the diff with gears on a RC10 B4? if this can be done at all? I would like a spare transmission ready for me just in case as the original b4 gears parts etc are rare. Sorry if this has been asked before but I have been trying to research and I'm still not sure.

Team Associated says the 91466 gear (B5M)will work in a b4 with the 9360 idler gear. I am thinking a B5M gear diff, 9826 Case with 10 x 15 x 4 outdrive bearings or 9830 outdrives ( b4.2 ) with 10 x 16 x 4 bearings . I haven't tried this setup just looking threw manuals and searching part numbers is how I came up with this combination.

Hi, thanks for the reply this info is helping, I've also found out how good the the transmission is out of the box and that I have the Stealth RC10 B4. Could you please recommend a diff gear grease at all? as this buggy is new to me. Thanks.