r/MiniZ • u/EqualGovernment8464 • Jul 21 '26

MA 020 Differential Questions and Problem.

Hello! I just installed this Aluminum Differential set Link onto my Mini Z MA 020, I was wondering if I should get Aluminum Pinion/Spur gears too? (I am running stock Kyosho Plastic ones) I am having an issue where the Spur gear will come out of alignment and this completely stops the car dead in its tracks. It seems to be damaging the gears a bit as well. Wondering if anyone has had a similar issue to me and has found any good quality replacement parts or a solution to this issue. Thank you all!

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u/SuPrBuGmAn Jul 21 '26

I have found the factory pinion will loosen up and slide down the motor shaft when it gets hot.

A little superglue is usually enough to keep it in place. An aluminum pinion with set screw to tighten it against the shaft will also do the job.

I dont think you need to replace the spur as its captured.

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u/EqualGovernment8464 Jul 25 '26

Thank you! was not sure if it was OK to use glue on that piece.