Really interesting is this !
I was actually interested in replacing ball-diff of my B4 by a SC10 gear-diff to get rid of maintenance !
What are they made of ? plastic
I have a 20year old kyosho gear-diff that took extreme torque without any sign of wear after several runs (when the B4 ball-diff needed new rings & balls)
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RB5 & FT B4
Lazer ZX5 & BJ4WE
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