This is the hydraulic Final Drive Planet Gear Bearing for John Deere CT322 Track Loaders. Be aware that many times this is a symptom of larger problems inside the planet housing such as worn bearings causing side load on your gears. It is vital that you investigate this and address any other issues on your motor. Please call if you have any questions at all or need help rebuilding your motor. We offer all parts for the planet section of this motor.