brushless 1/5 4wd conversion about to begin! couple questions.

[KaztheMinotaur]

Yeah.

[Ryu James]

i am just gonna do like what you said Kaz and mill out the central area of the gear so that it sheds some weight and mounts up properly to the drive shaft but still is very wide. it is not hardened but i have to tell you it seems way stronger/harder than the gears that i have that are hardened. plus, there is a company here local that i could have harden it if needed but i dont think this gear is gonna have any issues. and acutually the rcm pinion is wider than this. the sdp gear is 10mm wide. i havent measure the rcm pinion but i would guess it is about 14mm wide.