New OEM 2019+ rear differential gear set, 10/36 tooth straight cut ring and pinion gear set, Timken seals, NTN or IKO pilot bearing , OEM shim kit and OEM bearings along with a new bolt and washer to retain the driveshaft.BRP claims 25% increase in load capacity on this gear set vs the spiral cut xmr final drive units (rear differentials) from 13-18 models.Fits differential part numbers: 705502808, 705502546, 705502178, 705502090 703501031 705501550 705501556 705501557