Gear boxes and Drive Trains

[Stianos]

Hey guys,
I'm a relatively young mentor on a very young team. We don't have very many mentors, and no one seems to know much about gear boxes or drive trains. We normally just use the KOP drive train. How ever, as we are going to attend an off season event, some of the kids were talking about upgrades we can do over the next few months. One of the mentioned changing our 4 cim drive train to a 6 cim drive train.

Maybe I'm not looking hard enough, but I can't seem to find anything anywhere about how to do this. This has also made me realize I know next to nothing about gear boxes.

So I guess I have 2 requests. Any sources that could help with a 6 cim drive train and any sources that might help me understand gear boxes more.

Thanks in advance!