Ring and pinion gears transfer power from the driveshaft to the axle and wheels of your Jeep Wrangler. They are installed in the rear-drive differential gearbox and can improve the performance of any off-road vehicle. Since most of the torque loading occurs at the gearing change in the differential, a good ring and pinion set will reduce the stress and strain that is placed on the drivetrain. The entire system should last longer, especially if you drive your Jeep Wrangler on challenging off-road terrain. The one drawback is that ring and pinion gear sets can be difficult to install. You must match the pinion sets with the front differential rings. But even if you can't complete the project on your own, you can still save money by purchasing sets from us and having your local mechanic put them in.