I've recently assembled my Tamiya 70103 Universal Gearbox Kit and noticed it didn't come with any lube. Is it recommended to lubricate this gearbox? I notice other Tamiya kits include a little tube of lube...
From the instructions, it does not look like the gears are meant to have lube applied. Typically, the Tamiya gearboxes we have where you are supposed to apply lube usually mention it in the instructions, so you should be fine.