13. DRIVE TRAIN MXU 500IRS FRONT ASSY GEARCASE REMOVAL/INSPECTION/ INSTALLATION REMOVAL Drain the front assy gear case oil (refer to the "FRONT DRIVE GEAR OIL" in the chapter 3). Remove the steering knuckle (refer to the "STEERING KNUCKLE REMOVAL/INSPECTION/ INSTALLATION" section in the chapter 14). Remove the front upper arms and front lower arms (refer to the "FRONT ARMS INSPECTION/REMOVAL/ INSTALLATION" section in the chapter 14). Remove the drive shafts (refer to the "FRONT DRIVE SHAFT REOMVAL/INSPECTION/ INSTALLATION" section in this chapter). Disconnect the following wire connectors . 13-11