TM 10-3930-659-20 9-3. DIFFERENTIAL OIL REPLACEMENT (Con't). b. DRAINING _I NOTE A  suitable  container  should  be  used  to  catch  any  draining  oil. Ensure that all spills are 1. Remove drain plug (3) from front differential (2) and allow oil to drain. 2. Install  drain   plug   (3)   on   front   differential   (2). c. FILLINGI 1. Remove fill plug (1) from front differential (2). NOTE Differential housings have three sumps.  Slowly fill center sump and allow oil to drain into all sumps 2. Fill front differential (2) with oil up to fill plug (1) hole. 3. Install fill plug (1) on front differential (2). TA706746 9-7/(9-8 Blank)