Differential Case and Ring Gear: Assembly

Lubricate the differential side gear thrust washers and the differential side gear journals, and assemble the washers to the gears.
- Use SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A.
  
  Fig 1: Locating Washer And Side Gear Journals
  Courtesy of FORD MOTOR CO.
Lubricate the differential pinion thrust washers and the differential pinion gears, and assemble the washers to the gears.
- Use SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or equivalent meeting Ford specification WSP-M2C197-A.
  
  Fig 2: Locating Thrust Washer And Pinion Gear
  Courtesy of FORD MOTOR CO.
Position the differential side gear and thrust washer assemblies in the differential case.

Fig 3: Positioning Differential Side Gear And Thrust Washer
Courtesy of FORD MOTOR CO.
Engage the differential pinion gears with the differential side gears and rotate the pinion gears to align with the differential pinion shaft bore.

Fig 4: Engaging Differential Pinion Gears With Differential Side Gears
Courtesy of FORD MOTOR CO.
Insert the differential pinion shaft.
- Align the hole in the differential pinion shaft with the hole in the differential case.
  
  Fig 5: Inserting Differential Pinion Shaft
  Courtesy of FORD MOTOR CO.

NOTE: If a new bolt is unavailable, coat the original bolt threads with Threadlock and Sealer EOAZ-19554-AA or equivalent meeting Ford specifications WSK-M2G351-A5 prior to installation.

Fig 6: Installing New Bolt

Courtesy of FORD MOTOR CO.

Install a new bolt finger-tight.
Using the special tool, install the new differential bearings, if removed.

Fig 7: Installing Differential Bearings
Courtesy of FORD MOTOR CO.
Position the ring gear and the differential case. Align the bolt holes by starting two bolts through the holes in the differential case and the ring gear. Press the ring gear on the differential case.

Fig 8: Pressing Ring Gear On Differential Case
Courtesy of FORD MOTOR CO.
Install the bolts.
- Apply Stud and Bearing Mount EOAZ-19554-BA or equivalent meeting Ford specification WSKM2G349-A1 to the bolt threads.
  
  Fig 9: Installing Bolts
  Courtesy of FORD MOTOR CO.
Install the differential case. For additional information, refer to DIFFERENTIAL CASE .