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Home >> Subaru >> 2015 >> WRX Limited, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Manual Transaxle & Differential (TY75) (W/O STI)) >> Reverse Idler Gear >> Installation

Reverse Idler Gear: Installation

WARNING: This page is about a different variant/trim than selected.
NOTE: Rotate the reverse idler sub gear by two teeth from free status in the direction of the arrow to make it engage with the reverse gear of the main shaft and install the main shaft assembly.
Fig 1: Rotating Reverse Idler Sub Gear
G10268860Courtesy of SUBARU OF AMERICA, INC.
  1. Install the reverse idler gear bushing with the cutout portion of the reverse idler gear bushing facing the front of the transmission.
    Fig 2: Installing Reverse Idler Gear Bushing
    G08582139Courtesy of SUBARU OF AMERICA, INC.
  2. Assembling reverse idler gear assembly
    1. Install the reverse coupling sleeve to the reverse idler gear No. 2.
      NOTE:
      • Install the reverse coupling sleeve in the correct direction.
      • Make sure that the oval-shaped cutout portion inside the reverse coupling sleeve matches the center of the reverse idler gear No. 2 groove.
      Fig 3: Installing Reverse Coupling Sleeve
      G08582141Courtesy of SUBARU OF AMERICA, INC.
    2. Install the reverse shifting insert.
      NOTE: Press in the ball part to install.
      Fig 4: Installing Reverse Shifting Insert
      G08582142Courtesy of SUBARU OF AMERICA, INC.
    3. Install the reverse baulk ring and reverse idler gear.
      Fig 5: Identifying Reverse Baulk Ring And Reverse Idler Gear
      G10268864Courtesy of SUBARU OF AMERICA, INC.
    4. Install the needle bearing and reverse idler gear collar.
      Fig 6: Identifying Needle Bearing And Reverse Idler Gear Collar
      G10268865Courtesy of SUBARU OF AMERICA, INC.
    5. Install the thrust bearing and reverse idler gear washer.
      NOTE: Install the thrust bearing in the correct direction.
      Fig 7: Installing Thrust Bearing And Reverse Idler Gear Washer
      G08582145Courtesy of SUBARU OF AMERICA, INC.
  3. Install the assembled reverse idler gear assembly to the transmission case and hold it with hands.
  4. Install the reverse idler gear shaft.
    NOTE:
    • Install with the cutout portion of the reverse idler gear shaft facing the RH side of the transmission case.
    • Make sure that the groove of the reverse idler gear shaft comes out of the reverse idler gear bushing.
    Fig 8: Locating Cutout Portion Of Reverse Idler Gear Shaft
    G10268867Courtesy of SUBARU OF AMERICA, INC.
  5. Install the reverse idler gear shaft securing bolt.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.4 ft-lb) 

    Fig 9: Locating Reverse Idler Gear Shaft Securing Bolt
    G09482759Courtesy of SUBARU OF AMERICA, INC.
  6. Install the snap ring.
    Fig 10: Installing Snap Ring
    G08582136Courtesy of SUBARU OF AMERICA, INC.
  7. Select the reverse idler gear bushing. <Ref. to ADJUSTMENT , Reverse Idler Gear.>
  8. Remove the reverse idler gear assembly and replace with the selected bushing. <Ref. to REMOVAL , Reverse Idler Gear.>
  9. Install the reverse idler gear assembly, oil case guide and reverse idler gear shaft.
    NOTE:
    • Install with the cutout portion of the reverse idler gear shaft facing the RH side of the transmission case.
    • Make sure that the groove of the reverse idler gear shaft comes out of the reverse idler gear bushing.
    • Insert the cutout portion of the reverse idler gear bushing into the oil case guide.
    Fig 11: Inserting Cutout Portion Of Reverse Idler Gear Bushing Into Oil Case Guide
    G10268870Courtesy of SUBARU OF AMERICA, INC.
  10. Install the reverse idler gear shaft securing bolt.
    NOTE: Use a new gasket.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.4 ft-lb) 

    Fig 12: Locating Reverse Idler Gear Shaft Securing Bolt
    G09482759Courtesy of SUBARU OF AMERICA, INC.
  11. Install the snap ring.
    Fig 13: Installing Snap Ring
    G08582136Courtesy of SUBARU OF AMERICA, INC.
  12. Check the reverse shifter fork. <Ref. to INSPECTION , Shifter Fork and Rod.>
  13. Install the front differential assembly. <Ref. to INSTALLATION , Front Differential Assembly.>
  14. Install the main shaft assembly. <Ref. to INSTALLATION , Main Shaft Assembly for Single-Range.>
  15. Install the drive pinion shaft assembly. <Ref. to INSTALLATION , Drive Pinion Shaft Assembly.>
  16. Install the transmission case. <Ref. to INSTALLATION , Transmission Case.>
  17. Install the transfer case together with the extension case assembly. <Ref. to INSTALLATION , Transfer Case and Extension Case Assembly.>
  18. Install the back-up light switch and the neutral position switch. <Ref. to INSTALLATION , Switches and Harness.>
  19. Install the manual transmission assembly to the vehicle. <Ref. to INSTALLATION , Manual Transmission Assembly.>