When it comes to replacing shocks, the rule of thumb is not to do so until they are broken and bleeding hydraulic fluid. The exception to that is coil-over shocks, especially when it comes to the rear of your golf cart. Most of the weight rides over the back axle. If you notice a slight sag to your caboose, it's time to upgrade the suspension, and the best way to do that is a set of Yamaha Heavy Duty Rear Coil Springs. The Buggies Unlimited experts will tell you that worn suspension is the start of several issues. However, it's going to limit the golf cart's everyday function immediately.These heavy-duty coil-overs come as a pair but are just the springs and installation hardware; the actual shock gets sold separately. They are much stiffer than their stock counterparts and have increased load-carrying capacity. This is a moderate-level install. Having a press is not needed but makes things much more manageable. Book a set of aftermarket Yamaha Heavy Duty Rear Coil Springs with Buggies Unlimited now.