TM 10-3930-669-34 10-4. DIFFERENTIAL REPAIR (CONT). (9) Remove  four  screws  (19),  cover  (20),  and  seal (21) from differential housing (10).  Discard seal. b. Disassembly. NOTE Attach    pinion    assembly    flange    to work  surface  to  prevent  flange  from turning during disassembly. (1) Remove nut (22) and seal (23) from pinion shaft (24).  Discard seal. (2) Using   a   puller,   remove   flange   (25)   and   cover plate (26) from pinion shaft (24). 10-14