My apology for bumping an old thread, but I have a question about your gearbox. I have seen your videos on youtube and I'm very impress at your Leopard 2 and ZTZ99 speed and little to no noise from the gearbox. Can you take a picture of what you did to your gearbox?

Did you remove two gears, so what are left are just the pinion, one gear, and a drive shaft? I have a pair of Promaxx 480 motors and I'm wondering how you get enough toque to run the tank after removing two gears.

Thanks!