TM 10-3930-669-34 10-4. DIFFERENTIAL REPAIR (CONT). (27) Coat seal (21) with lubricating oil. (28) Install seal (21) in cover (20). (29) Install   cover   (20)   on   differential   housing (10) with four screws (19).  Tighten screws to 18 lb-ft (25 N•m). (30) Install  plug  (5)  on  left  intermediate  cover (2). (31) Install fill plug (1) in left intermediate cover (2) and right intermediate cover (3). (32) Install fill plug (4) in left intermediate cover (2). NOTE Follow-on Maintenance: • Install brakes (Para 11-2). • Install axle housings (Para 10-3). • Install planetary hubs (Para 9-2). • Install drive axle (Para 10-2). END OF TASK 10-30