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yokomo ever released the oneway spur gear adapter ZC-641G，can use the common spur gear on dogfighter. masami's car also used this part in works'89.the part including 4 ball bearings(two one-way bearings).I am not sure the part released day. recently I got a part，very similar as the ZC-641G, it looked like hand-made or machine-made for long time,with four holes for spur gear,with 3 ball bearings(one one-way) and the thick spacer.any one has idea about this part?or who made this part?is that yokomo prototype? thanks

Yunfei

I have a couple of those kicking around, they came from German YZ10 '94s.

That could make them Graupner aftermarket parts then. Cool stuff!

another item
who made this shell?
looked very similar as yokomo but somewhere different

yokomo ever released Stainless steel outdrive cups before? this is the original steel outdrive cups

These look like 870c, works 91/92 that have been polished
these were released for the works 93