I have a tubeworks rally drive alternator on mine. Definitely worth it. I’ve seen a few different types. My altenator does not use a belt. It is gear driven & mounted on the back of the transmission. I have not had a issue with a discharged battery. I run a rigid LED bar& pods, 5 ft led whips, LED Low & high beams ,winch, turn signals, and sound system. I can use all at at the same time.