2012-2018 G2 ATV Rear Differential Swap Kit Kit includes: Rear Differential, Rear driveshaft, Bolt and Washer. This kit includes a rear differential with: Tapered roller bearings Three bearings on the pinion gear 6 inch diameter ring gear Your choice of gear style, spiral bevel or straight cut. Both have the same 3.60 ratio as your current differential. Spiral Bevel Gears are sourced from the 2013-18 800 850 and 1000 XMR differentials. Current part number 705502546 Old part numbers: 705502178 & 705502090 Straight Cut gears are sourced from the 2019+ 650+ differentials. Current part number 705502808 The driveshaft included is an OEM shaft with the correct end yokes for your application. The differential end yoke will not use a wear ring, this has been done away with by BRP the yoke is what the pinion seal touches now. You will need to fill the differential with 250ml (8.4oz) of 75W-140 gear oil and transfer over your fill plug and washer. The torque spec on the driveshaft retaining bolt is 55ftlbs with thread locker applied. Some minor trimming on the brackets that surround the differential is required. These differentials have the provision for an ABS sensor, this is standard on euro models, for mud riders state side, you can fill this hole with RTV or leave it open. If you are running the silver protector ring on your axle, you will need to push the ring outward slightly. We choose to remove these dust covers as they tend to trap debris when run under water.