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Home >> Subaru >> 2022 >> WRX Premium, Standard Trans >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> Manual Transaxle & Differential (TY75) >> Drive Pinion Shaft >> Disassembly

Drive Pinion Shaft: Disassembly

NOTE:
  • Attach a cloth to the end of driven shaft (on the frictional side of the thrust needle bearing) to prevent damage during disassembly or reassembly. 
  • When replacing the coupling sleeve and synchronizer hub, replace them as a set. Because these must engage at the specified point, avoid disassembly as much as possible. If it is necessary to disassemble, mark the engaging points on the splines beforehand. 
  1. Using ST1, ST2 and ST3, remove the lock nut.
    NOTE:

    Flatten the lock nut tab before removing the lock nut. 

    Preparation tool: 

    ST1: HOLDER (18680AA020)

    ST2: HOLDER (18667AA020)

    ST3: SOCKET (27) (18662AA010)

    G08582069Courtesy of SUBARU OF AMERICA, INC.
  2. Remove the lock washer, washer, differential bevel gear sleeve, adjusting washer No. 1, thrust bearing and adjusting washer No. 2.
    G14611807Courtesy of SUBARU OF AMERICA, INC.
  3. Draw out the drive pinion shaft from driven shaft.
  4. Remove the needle bearing and drive pinion collar.
    G14611808Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the needle bearing and thrust bearing.
    G14611809Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the roller bearing and washer using ST and a press.

    Preparation tool: 

    ST: REMOVER (498077000)

    G13233852Courtesy of SUBARU OF AMERICA, INC.
  7. Using ST1 and ST2, remove the lock nut.
    NOTE:

    Flatten the lock nut tab before removing the lock nut. 

    Preparation tool: 

    ST1: SOCKET WRENCH (50) (499987300)

    ST2: HOLDER (18680AA020)

    G08582074Courtesy of SUBARU OF AMERICA, INC.
  8. Remove the ball bearing, 6th driven gear and drive pinion spacer using the ST1, ST2 and a press.

    Preparation tool: 

    ST1: PRESS (899754112)

    ST2: REMOVER (899714110)

    G08582075Courtesy of SUBARU OF AMERICA, INC.
  9. Remove the 5th driven gear, double ball bearing and 3rd-4th driven gear using ST1, ST2 and a press.

    Preparation tool: 

    ST1: PRESS (899754112)

    ST2: REMOVER (899714110)

    G08582076Courtesy of SUBARU OF AMERICA, INC.
  10. Remove the key.
  11. Remove the 2nd driven gear, 2nd inner baulk ring, 2nd synchro cone, 2nd outer baulk ring, 1st-2nd shifting insert and 1st-2nd coupling sleeve.
    CAUTION:

    When removing 1st-2nd coupling sleeve, be careful not to lose the 1st-2nd shifting insert. 

  12. Remove the 1st driven gear, 1st inner baulk ring, 1st synchro cone, 1st outer baulk ring, 2nd driven gear bushing and 1st-2nd synchronizer hub using ST and a press.

    Preparation tool: 

    ST: COMPRESSOR SPECIAL TOOL (18762AA001)

    G08582077Courtesy of SUBARU OF AMERICA, INC.