T350 Manual Transaxle: Disassembly

The NV T350 (A-578) transaxle internal components can be serviced only by separating the gear case from the bellhousing case.

1. Place transaxle on bench.
2. Remove the clutch release bearing and fork. Move the release fork and bearing to an in-line position. Grasp the release lever with two hands in the pivot stud socket area. Pull with even pressure to release the fork from the pivot stud.
   CAUTION: Do not use a screwdriver or pry bar to release the fork as this may cause damage to the fork and/or clip.
3. Remove shift levers by driving out the roll pins.
4. Remove transaxle case half bolts. (Fig 1).
   Fig 1: Removing Case Bolts

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5. Place two screwdrivers into the slots provided in the case halves near the dowels. (Fig 2). Separate the case halves. (Fig 3).
   Fig 2: Identifying Transaxle Case Halves

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   Fig 3: Prying To Separate Case Halves

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6. Remove bellhousing half from gear case half. (Fig 4).
   Fig 4: Removing Bellhousing Case Half

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7. Remove output shaft roller bearing from output shaft.
8. Remove differential assembly. (Fig 5).
   Fig 5: Removing Differential Assembly

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9. Remove reverse idler shaft bolt. (Fig 6).
   Fig 6: Removing Reverse Idler Shaft Bolt

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10. Remove reverse idler shaft. (Fig 7).
    Fig 7: Removing Reverse Idler Shaft

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11. Remove reverse idler gear and spacer. (Fig 8).
    Fig 8: Removing Reverse Idler Gear & Spacer

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12. Remove two screws retaining reverse fork bracket. (Fig 9). Remove reverse fork bracket and reverse cam blockout assembly. (Fig 10).
    Fig 9: Removing Screws Retaining Reverse Fork Bracket

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    Fig 10: Removing Reverse Fork Bracket

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13. Using snap-ring pliers, remove selector shaft spacer. (Fig 11).
    Fig 11: Removing Selector Shaft Spacer

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14. Pull the selector shaft shift pin out of the slot in the blocker assembly. Turn selector shaft up and out of the way. (Fig 12).
    Fig 12: Removing Selector Shaft

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15. Remove transaxle end cover. (Fig 13 and Fig 14 ).
    Fig 13: Removing Transaxle End Cover Bolts

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    Fig 14: Removing Transaxle End Cover

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16. Remove two snap rings retaining the output shaft and the input shaft to the bearings. (Fig 15).
    Fig 15: Removing Snap Rings Retaining Bearings

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17. Using bench fixture and shims provided (Miller tools # 6785, 6785-1, and 6785-2), turn transaxle over. Install transaxle onto bench fixture. (Fig 16). Verify shim spacers are in position on bench fixture. Install transaxle into shop press.
    Fig 16: Using Bench Fixture

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18. Install bearing fixture Miller tool #6768 onto transaxle end bearings. (Fig 17). Verify tool is properly aligned to input and output shafts.
    Fig 17: Installing Bearing Fixture

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    CAUTION: The oil dams in the input and output shafts can be damaged while pressing on the shafts if the bearing fixture is not used properly.
19. Install transaxle gear case into shop press. Press output and input shaft assemblies out of case. (Fig 18).
    Fig 18: Pressing Output & Input Shafts Out Of Case

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20. Remove transaxle from press.
21. Carefully remove transaxle case from the shaft assemblies and bench fixture. (Fig 19). Be sure the oil-feed trough to the end bearings is not damaged. (Fig 20).
    Fig 19: Removing Transaxle Case

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    Fig 20: Inspecting Oil Feed Trough

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22. Remove the reverse brake blocking ring, shim, reverse brake friction cone, bearing and race from the input shaft assembly. (Fig 21, Fig 22, Fig 23, Fig 24 and Fig 25 ).
    Fig 21: Removing Reverse Brake Shim

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    Fig 22: Removing Reverse Brake Friction Cone

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    Fig 23: Removing Reverse Brake Blocking Ring

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    Fig 24: Removing Reverse Brake Needle Bearing

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    Fig 25: Removing Reverse Brake Race

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23. Remove the shift blocker assembly from the bench fixture. (Fig 26).
    Fig 26: Removing Shift Blocker Assembly

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24. Remove the 1-2 shift fork from the output shaft. (Fig 27).
    Fig 27: Removing 1-2 Shift Fork

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25. Remove input and output shaft assemblies from bench fixture. (Fig 28).
    Fig 28: Removing Gear Train

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