Splined connections are a savior for more expensive parts, but when they strip, it can cause more than a few four-letter words to get let loose. Items like the E-Z-GO RXV Rear Hub have to be replaced constantly because of this. All of the power your caddie can put on the wheels has to transfer through that hub. That connection is weakened if you are in a high torque situation, like climbing a hill or pulling a heavy load. Eventually, it will give out, and it's designed to do that before something more expensive takes damage. It's a process called manufactured obsolescence. It's a lot easier to replace a hub than it is an axle or differential component. Much cheaper too.This golf cart rear hub has a very straightforward installation process. You are going to need a jack and a few stands to raise the rear of the cart. Beyond that, a set of sockets and a cold drink will get you through to the end. Call Buggies Unlimited today and get your E-Z-GO rear hub sent your way.