We all have irrational fears like pigeons or replacing the EZGO Marathon Reverse Switch Assembly. Now we admit the childhood phobia, thanks to Al and Tippy, maybe a little silly. Not wanting to shock yourself when handling electrical items seems a bit saner. That is a good bit of voltage and many amperages you are dealing with; safety is critical. If you have ever had one of these systems grab you at the partial or complete battery pack, then you know as well as we do, it can hurt like reading Dickens for the first time in school.Just like playing popcorn on the trampoline takes a good bit of finesse, swapping one of these golf cart switches out effectively will need skill. This is not a hard job at all, but this unit is responsible for swapping the polarity at the motor. Ensuring you get all the EZGO cables and wires hooked up correctly could mean the difference in the cart running, not running, or melting. This copper contacted switch will, over time, become susceptible to heat. This is from the natural shifting motion, which wears everything down. If this causes a gap to form, power will arc and make the problem worse.This golf cart switch assembly is identical to the one that was on your coach. It will hook up the exact same way as well. An easy way to get this done is first to disconnect the main battery, positive and negative. This is the very first and last cable in the series. It is the only EZGO cable on your batteries that does not connect to another battery but goes somewhere else. Give Buggies Unlimited a call and speak to an expert in our tech support department that can help you get what you need.