Oil Seal (Side Gear) Replacement

Special Service Tool (SST) 

49 D028 203 Support block

Courtesy of MAZDA MOTORS CORP.

Replacement Part 

1. Remove the drain plug and washer, and drain the oil. (See DIFFERENTIAL OIL REPLACEMENT .)
2. Install a new washer and the drain plug, and tighten.
   Fig 1: Filler Plug, Drain Plug, Washers And Bolts With Torque Specification

   Courtesy of MAZDA MOTORS CORP.
3. Remove the rear drive shaft. (See REAR DRIVE SHAFT REMOVAL/INSTALLATION (US) .)
4. Remove the oil seal from the differential casing using a flathead screwdriver.

   Courtesy of MAZDA MOTORS CORP.

   CAUTION:

   • Wrap the end of a screwdriver with cloth to prevent scratches to the inside of the differential casing.
5. Apply differential oil to the new oil seal lip.
6. Install the new oil seal to the differential carrier using the SST.
   NOTE:

   • Install the oil seal at a straight angle.
7. Install the rear drive shaft. (See REAR DRIVE SHAFT REMOVAL/INSTALLATION (US) .)
8. Remove the oil filler plug and washer, and then add the recommended differential oil. (See DIFFERENTIAL OIL REPLACEMENT .)
9. After adding the oil, perform an oil level inspection. (See DIFFERENTIAL OIL INSPECTION .)
10. Install a new washer and the oil filler plug, and tighten.