Front Differential: Disassembly

DIFFERENTIAL CASE ASSEMBLY
1. Using a press and ST, remove the taper roller bearing.
  ST 498077000 REMOVER
  
  Fig 1: Removing Taper Roller Bearing Using Special Tool
  Courtesy of SUBARU OF AMERICA, INC.
2. Secure the case in a vise and remove the crown gear tightening bolts, then separate the crown gear, case (RH) and case (LH).
  
  Fig 2: Removing Crown Gear Tightening Bolts
  Courtesy of SUBARU OF AMERICA, INC.
3. Pull out the straight pin and shaft, and remove the differential bevel gear, washer, and differential bevel pinion.
  
  Fig 3: Removing Differential Bevel Gear, Washer & Differential Bevel Pinion
  Courtesy of SUBARU OF AMERICA, INC.
SIDE RETAINER
NOTE: After adjusting the drive pinion backlash and tooth contact, remove and install the oil seal and O-ring.
1. Remove O-ring.
  
  Fig 4: Removing O-Ring
  Courtesy of SUBARU OF AMERICA, INC.
2. Remove oil seal.
  
  Fig 5: Removing Oil Seal
  Courtesy of SUBARU OF AMERICA, INC.
3. Take out either split pin, remove claw.
  ST 398527700 PULLER ASSY
  
  Fig 6: Removing Claw
  Courtesy of SUBARU OF AMERICA, INC.
4. Securely attach two claws to outer race, set ST to side retainer.
  ST 398527700 PULLER ASSY
  
  Fig 7: Attaching Claws To Outer Race
  Courtesy of SUBARU OF AMERICA, INC.
5. Return removed claw to the original position, and install pin and split pin.
6. Hold the shaft of ST to avoid removing from side retainer, and then remove the bearing outer race.
  ST 398527700 PULLER ASSY
  
  NOTE: Replace bearing inner and outer races as a single unit.
  
  Fig 8: Removing Bearing Outer Race
  Courtesy of SUBARU OF AMERICA, INC.