The Bock F5 rear bearing assembly consists of a bearing housing, bearing, shaft, and seals. The bearing housing is mounted to the frame of the vehicle and is used to support the drive shaft. The bearing is a roller or ball bearing that allows for smooth operation of the drive shaft. The shaft is connected to the transmission and the rear axle. The seals help to keep any dirt or debris from entering the bearing housing. The assembly also includes a snap ring which helps to keep the bearing in place.