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Home >> Subaru >> 2015 >> WRX Limited, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Manual Transaxle & Differential (TY85) (STI)) >> Main Shaft Assembly >> Removal

Main Shaft Assembly: Removal

WARNING: This page is about a different variant/trim than selected.
  1. Remove the manual transmission assembly from the vehicle. <Ref. to REMOVAL , Manual Transmission Assembly.>
  2. Prepare the transmission for overhaul. <Ref. to PREPARATION FOR OVERHAUL .>
  3. Remove the neutral position switch, back-up light switch and harness. <Ref. to REMOVAL , Neutral Position Switch.> <Ref. to REMOVAL , Back-up Light Switch.>
  4. Remove the extension case. <Ref. to REMOVAL , Extension Case.>
  5. Remove the transfer driven gear. <Ref. to REMOVAL , Transfer Driven Gear.>
  6. Remove the center differential. <Ref. to REMOVAL , Center Differential.>
  7. Remove the transmission case. <Ref. to REMOVAL , Transmission Case.>
  8. Remove the striking rod.
  9. Remove the oil guide B.
    Fig 1: Removing Striking Rod
    G05669463Courtesy of SUBARU OF AMERICA, INC.
  10. Use a screwdriver to shift to the 4th gear position.
    Fig 2: Removing Shift To 4th Gear Position Using Screwdriver
    G10269073Courtesy of SUBARU OF AMERICA, INC.
  11. Remove the reverse idler holder.
    Fig 3: Removing Reverse Idler Holder
    G09988905Courtesy of SUBARU OF AMERICA, INC.
  12. Remove the check plug, O-ring, check spring, plunger and check ball from the adapter plate.
    NOTE: Do not reuse the O-ring.
    Fig 4: Removing Check Plug, O-Ring, Plunger And Check Ball From Adapter Plate
    G10269074Courtesy of SUBARU OF AMERICA, INC.
  13. Remove the bolt and gasket holding the reverse idler gear shaft.
    Fig 5: Locating Bolt And Gasket
    G05003369Courtesy of SUBARU OF AMERICA, INC.
  14. Push the main shaft assembly, driven gear assembly, reverse idler gear and shifter forks to remove from the adapter plate all at once.
    NOTE: A helper is required to perform this work.
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