Assembly Procedure

Install the ring gear to the gear case.

Fig 1: Installing Ring Gear To Gear Case
Courtesy of MAZDA MOTORS CORP.
Tighten the bolts evenly and gradually in the order shown, (bolt fixed type)
Tightening torque

152-176.4 N.m {15.5-17.9 kgf.m, 112-130 ft.lbf}
NOTE:
- If the gear case has been newly replaced perform Step (3).
Fig 2: Ring Gear Bolt Tightening Sequence
Courtesy of MAZDA MOTORS CORP.
Install the sensor rotor to the gear case using the SST and suitable plate.

Fig 3: Installing Sensor Rotor To Gear Case Using SST
Courtesy of MAZDA MOTORS CORP.
Install a new bearing.
1. Press the new bearing (sensor rotor side) onto the gear case using the SST.
2. Press on the other new bearing (ring gear side) in the same manner.
Apply ATF to the thrust washers and pinion shaft.
Install the pinion gear and thrust washers into the gear case.

Fig 4: Installing Pinion Gear And Thrust Washers Into Gear Case
Courtesy of MAZDA MOTORS CORP.
Install the pinion shaft.

Fig 5: Installing Pinion Shaft
Courtesy of MAZDA MOTORS CORP.
Install the roll pin, and crimp it to prevent it from coming out of the gear case.
Apply ATF to the thrust washers.
Install the thrust washers and side gears into the gear case, then turn the side gears and align them with the drive shaft holes.

Fig 6: Crimping Roll Pin To Gear Case
Courtesy of MAZDA MOTORS CORP.
Measure the backlash of the side gears as follows:
1. Install the left and right drive shafts in the differential
2. Support the drive shafts on V-blocks.
3. Measure the backlash of both side gears.
  Differential backlash
  
  Standard: 0.05-0.15 mm {0.002-0.005 in}
  
  Maximum: 0.5 mm {0.020 in}
- If not as specified, replace the differential.
Fig 7: Measuring Backlash Of Both Side Gears
Courtesy of MAZDA MOTORS CORP.