This ready assembled front and rear differential suits the ARRMA KRATON 8S and pairs 20CrInTiH steel internals with 7075 aluminium housings for solid long term service. It replaces the original part number #ARA310937 and features a helical 9T/30T gear set with a 2.0mm module for consistent meshing. Differential fluid is not supplied; fit your preferred silicone oil and consider 100k cSt for this application.
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