These Complete Ring and Pinion kits include everything needed for a gear swap. This will include front and rear gear sets plus the installation kits for both axles. This is the easiest way to buy a set of gears for your Jeep. G2 Performance Ring & Pinion sets are engineered with todays most demanding applications in mind. Designed to hold up to oversized tires and high performance engines, these gears use the latest technology and materials in their manufacturing to give you the strongest and quietest performance gear sets available.