Section 671 (Manual Transmission - F250-F550 Super Duty): Removal: Transmission

Special Tool(s) 

Fig 1: Identifying Special Tool

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All vehicles 

1. Remove the four screws and the outer shift lever boot.
   Fig 2: Removing Screws Of Outer Shift Lever Boot

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2. Remove the upper gearshift lever.
   Fig 3: Removing Upper Gearshift Lever

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3. Remove the lower shift lever boot.
   Fig 4: Removing Lower Shift Lever Boot

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4. Remove the lower gearshift and shift housing.
   Fig 5: Removing Lower Gearshift And Shift Housing

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   Vehicles with a manual shift lever 

5. Shift the transfer case into 4H.
6. Remove the screws that attach the bezel and boot assembly to the floor.
   Fig 6: Removing Screws

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7. Remove the bolt that attaches the shift lever to the transfer case control lever assembly, and remove the shift lever, and the bezel and boot assembly.
   1. Slide the bezel and boot assembly upward on the shift lever.
   2. Remove the bolt, the shift lever, and the bezel and boot assembly.
      Fig 7: Removing Bolt

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   All vehicles 

8. Raise and support the vehicle. Refer to JACKING & LIFTING .
9. If the transmission is being disassembled, drain the transmission fluid.
10. Remove the starter. Refer to STARTERS .
11. Disconnect the rear driveshaft and position it aside. Refer to DRIVESHAFT .
12. Remove the transfer case, if equipped. Refer to TRANSFER CASE .
13. Remove any power take-off (PTO) equipment, if equipped.
14. Using the special tool, support the transmission.
    • Securely strap the jack to the transmission.
      Fig 8: Securing Strap Jack To Transmission

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15. Remove the transmission mount nuts.
    Fig 9: Removing Transmission Mount Nuts

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16. Remove the RH crossmember nuts.
    Fig 10: Removing RH Crossmember Nuts

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17. Remove the LH crossmember bolts.
    Fig 11: Removing LH Crossmember Bolts

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18. Disconnect the reverse lamp switch electrical connector.
    Fig 12: Disconnecting Reverse Lamp Switch Electrical Connector

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19. Disconnect wiring harness from the transmission.
    Fig 13: Disconnecting Wiring Harness From Transmission

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20. Remove the clutch slave cylinder and position it aside.
    • Push the clutch slave cylinder inward, then rotate counterclockwise 45 degrees to remove.
      Fig 14: Removing Clutch Slave Cylinder

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21. Disconnect the transmission cooling tubes.
    Fig 15: Disconnecting Transmission Cooling Tubes

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22. Remove the dust cover bolts.
    Fig 16: Removing Dust Cover Bolts (1 Of 2)

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    Fig 17: Removing Dust Cover Bolts (2 Of 2)

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23. Remove the transmission-to-engine bolts.
    • For vehicles equipped with diesel engines, remove six bolts.
    • For vehicles equipped with gasoline engines, remove seven bolts.
      Fig 18: Removing Transmission-To-Engine Bolts

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24. Remove the transmission.
    • Move the transmission rearward until the input shaft is clear of the clutch, then lower from the vehicle.