ok i dont get how to hook them up i want to build a tank style driving robot but i cant find out how to make the drivetrain i want it so that is is either 4 to 6 wheel treaded or any drivetrain im going crazy all i keep getting on google is that stupid how to book i dont wanna buy a book so if u guys could plzzzzzzzzz send me drivetrain links it would be mucho appreciated and no one comment me on my poor grammer i know how to do it i just dont