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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1435 (Manual Transmission) >> Transmission Assembly >> Disassembly and Assembly >> Disassembly >> Gear Components
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Gear Components

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. After removing snap ring and reverse coupling snap ring, using puller to remove reverse main gear and reverse synchronizer assembly.
  2. Remove reverse main needle bearing.
    Fig 4: Removing Snap Ring & Reverse Coupling Snap Ring, Using Puller To Remove Reverse Main Gear & Reverse Synchronizer Assembly
    G02404265Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Remove main shaft bearing retainer mounting bolts and then remove main shaft bearing retainer.
    Fig 5: Removing Main Shaft Bearing Retainer Mounting Bolts
    G02404266Courtesy of NISSAN MOTOR CO., U.S.A.
  4. After removing snap ring, using the puller to remove reverse counter gear and counter rear bearing spacer.
    Fig 6: Removing Reverse Counter Gear And Counter Rear Bearing Spacer
    G02404267Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Remove snap ring from the main shaft bearing.
    Fig 7: Removing Snap Ring From Main Shaft Bearing
    G02404268Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Carefully tap main shaft with a plastic hammer and then remove main shaft, main drive gear, and counter shaft from adapter plate.
  7. Remove pilot bearing spacer and main pilot bearing.
    Fig 8: Removing Pilot Bearing Spacer & Main Pilot Bearing
    G02404269Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Remove counter rear bearing from the adapter plate.
    Fig 9: Removing Counter Rear Bearing From Adapter Plate
    G02404270Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Remove snap ring from the main drive gear using snap ring pliers.
    Fig 10: Removing Snap Ring From Main Drive Gear Using Snap Ring Pliers
    G02404271Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Set the suitable puller on the main drive gear and then using a press to remove main drive gear bearing from the main drive gear.
    Fig 11: Removing Main Drive Gear Bearing From Main Drive Gear
    G02404272Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Using a press to remove the reverse main gear bushing, main shaft bearing and 4th main gear.
    Fig 12: Removing Reverse Main Gear Bushing, Main Shaft Bearing And 4th Main Gear
    G02404273Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Remove 3rd - 4th main spacer.
  13. Using a press to remove 1st main gear and 3rd main gear.
    CAUTION: Be careful not to damage the baulk ring. 
  14. Remove 1st needle bearing.
    Fig 13: Removing 1st Main Gear & 3rd Main Gear
    G02404274Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Using a press to remove 1st gear bushing, 1st - 2nd synchronizer assembly, and 2nd main gear.
    CAUTION: Be aware that when using the press, if the main shaft gear positioner catches on the V-block, etc., the main shaft could be damaged. 
  16. Remove 2nd needle bearing.
    Fig 14: Removing 1st Gear Bushing, 1st - 2nd Synchronizer Assembly & 2nd Main Gear
    G02404275Courtesy of NISSAN MOTOR CO., U.S.A.
  17. After removing snap ring, using a press to remove 6th main gear and 5th - 6th synchronizer assembly.
  18. Remove 6th needle bearing.
    Fig 15: Removing 6th Main Gear And 5th - 6th Synchronizer Assembly
    G02404276Courtesy of NISSAN MOTOR CO., U.S.A.
  19. Using a press to remove the 3rd counter gear, 3rd - 4th synchronizer assembly, 4th counter gear, 4th needle bearing, 4th gear bushing, 4th counter gear thrust washer, and counter rear bearing inner race.
  20. Remove 3rd needle bearing.
    Fig 16: Removing 3rd Counter Gear
    G02404277Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Using a press to remove the 3rd gear bushing.
    Fig 17: Removing 3rd Gear Bushing
    G02404278Courtesy of NISSAN MOTOR CO., U.S.A.