2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

Reduction Driven Gear: Installation

  1. Install the straight pin to reduction driven gear.
  2. After aligning the straight pin with the recess portion of transmission case, insert the reduction driven gear, and then install the snap ring.
  3. Select the snap ring. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Reduction Driven Gear>ADJUSTMENT .
  4. Replace with the selected snap ring.
    NOTE: If the clearance measured in step 3 is within standard, the snap ring replacement is not necessary.
  5. Install the forward clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Forward Clutch>INSTALLATION .
  6. Install the intermediate case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Intermediate Case>INSTALLATION .
  7. Install the transfer reduction driven gear. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transfer Reduction Driven Gear>INSTALLATION .
  8. Install the transfer clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transfer Clutch>INSTALLATION .
  9. Install the rear drive shaft. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Rear Drive Shaft>INSTALLATION .
  10. Install the extension case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Extension Case>INSTALLATION .
  11. Install the transmission body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Assembly>INSTALLATION .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.