TM 10-3930-659-20 9-2. FRONT AND REAR DIFFERENTIAL BREATHERS REPLACEMENT. This task covers: a. Removal b. Installation Initial Setup. Equipment Conditions: Materials/Parts: • Loader frame cover removed (front • One preformed packing differential breather only) (see paragraph Tools/Test Equipment: 14-11). • Transmission bottom guard removed • General mechanic's tool kit (Item 44, Appendix F) (rear differential breather only) (see. paragraph 14-8) NOTE Front and rear differential breathers are removed and Installed the same way.  Front differential breather Is Illustrated. a. REMOVAL 1. Remove breather assembly (1) from differential (2). TA706743 9-4