So unless I really can't see clear, there is no way to drain the gear box on the Frontier RC2048. I had to vacuum the oil out. I lifted it up and there is no drain underneath either. The manual is silent on how to drain it. Anyway, this worked good. I had water in the oil, it must leak through the the vent plug. I'll have to keep it covered better. I'll flush it a few times until I have just oil.
Sent from my SGH-I747M using Tapatalk 2