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Section 698 (Automatic Transmission - 4R70E/4R75E - F150 & Mark LT): Disassembly: Transmission

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools

Illustration Tool Name Tool Number
GF0000936
 Retainer, Torque Converter 307-346 (T97T-7902-A)
GF0000218
 Slide Hammer 100-001 (T50T-100-A)
GF0000940
 Holding Fixture, Transmission 307-003 (T57L-500-B)
GF0003558
 Slide Hammer 307-005 (T59L-100-B)
GF0003503
 Remover, Transmission Fluid Seal 307-048 (T74P-77248-A)
GF0000942
 Handle, Torque Converter 307-091 (T81P-7902-C)
GF0003559
 Remover, Transmission Fluid Pump 307-221 (T89T-70010-A)
GF0003517
 Remover/Installer, Servo Piston 307-251 (T92P-70023-A)
GF0003503
 Remover, Torque Converter Fluid Seal 307-309 (T94P-77001-BH)
GF0003256
 Remover, Bearing Cup 308-047 (T77F-1102-A)
  1. If equipped, remove the vent tube.
  2. Remove the special tool.
    3. Fig 1: Holding Converter In Housing Using Special Tool
    G03964338Courtesy of FORD MOTOR CO.
  3. Using the special tools, remove torque converter.
    4. Fig 2: Removing Torque Converter Using Special Tool
    GF0003560Courtesy of FORD MOTOR CO.
  4. Using the special tool, mount the transmission to the bench.
    5. Fig 3: Mounting Transmission To Bench Using Special Tool
    GF0003561Courtesy of FORD MOTOR CO.
    NOTE: If the transmission fluid pan gasket is not damaged, it can be reused.
  5. Remove the transmission fluid pan bolts, transmission fluid pan and gasket.
    6. Fig 4: Locating Transmission Fluid Pan Bolts
    GF0003562Courtesy of FORD MOTOR CO.
  6. Clean the transmission fluid pan and pan magnet.
    7. Fig 5: Locating Pan Magnet In Transmission Fluid Pan
    G03888537Courtesy of FORD MOTOR CO.
    CAUTION: If installing a new transmission fluid filter and the grommet remains in the main control bore, carefully use a small screwdriver to remove the grommet. Use care not to damage the main control bore.
    NOTE: If the transmission is being repaired for a contamination-related failure, use a new transmission fluid filter and seal. The transmission fluid filter can be reused if no excessive contamination is present.
  7. Remove the transmission fluid filter and grommet.
    8. Fig 6: Removing Transmission Fluid Filter And Grommet
    GF0003563Courtesy of FORD MOTOR CO.
    CAUTION: Do not pull on the plastic lead frame. This may cause damage to the connector ends. Carefully pry up on the locking tabs to disconnect the solenoids. Disconnect the molded lead frame from the solenoids.
  8. Disconnect the molded lead frame from the solenoids.
    1. Disconnect the shift solenoid SSA and SSB.
    2. Disconnect the torque converter clutch (TCC).
    3. Disconnect the electronic pressure control (EPC) solenoid.
    4. Disconnect the bulkhead inter-connector.
    9. Fig 7: Identifying Molded Lead Frame And Solenoids
    G04584282Courtesy of FORD MOTOR CO.
  9. Remove the speed sensors.
    1. Remove the output shaft speed (OSS) sensor bolt.
    2. Remove the OSS sensor.
    3. Remove the turbine shaft speed (TSS) sensor bolt.
    4. Remove the TSS sensor bracket and sensor.
    10. Fig 8: Identifying OSS And TSS Sensor Bolt
    GF0003564Courtesy of FORD MOTOR CO.
    CAUTION: Discard the outer manual control lever shaft nut. Do not reuse. The old nut will not retain the torque specification.
  10. Remove the outer manual control lever.
    • Remove and discard the manual control lever nut.
    • Remove the outer manual control lever.
    11. Fig 9: Identifying Outer Manual Control Lever
    GF0003565Courtesy of FORD MOTOR CO.
  11. Remove the digital transmission range (TR) sensor.
    1. Remove the digital TR sensor bolts.
    2. Remove the digital TR sensor.
    12. Fig 10: Identifying Digital TR Sensor Bolts
    GF0003566Courtesy of FORD MOTOR CO.
  12. Remove the manual control valve detent lever spring.
    13. Fig 11: Removing Manual Control Valve Detent Lever Spring Bolts
    G04584504Courtesy of FORD MOTOR CO.
  13. Remove the 24 main control valve body bolts, the main control valve body and the EPC solenoid bracket.
    14. Fig 12: Locating 24 Main Control Valve Body Bolts
    GF0003493Courtesy of FORD MOTOR CO.
  14. Remove and discard the pump outlet screen.
    15. Fig 13: Identifying Pump Outlet Screen
    G03888559Courtesy of FORD MOTOR CO.
    NOTE: Use a shop cloth to protect the transmission case surface.
  15. Remove the manual control lever shaft retaining pin.
    16. Fig 14: Locating Manual Control Lever Shaft Retaining Pin
    GF0003509Courtesy of FORD MOTOR CO.
  16. Remove the manual control lever shaft inner nut.
    • Slide the manual control lever shaft out of the case while removing the inner nut.
    17. Fig 15: Removing Inner Manual Control Lever Shaft Nut
    GF0003510Courtesy of FORD MOTOR CO.
  17. Remove the parking lever actuating rod.
    1. Remove the manual valve detent.
    2. Remove the parking lever actuating rod.
    18. Fig 16: Identifying Parking Lever Actuating Rod
    GF0003567Courtesy of FORD MOTOR CO.
    CAUTION: Use care not to damage the manual control lever shaft bore. If the bore is damaged the new seal may leak.
  18. Remove the manual control lever shaft seal.
    19. Fig 17: Locating Manual Control Lever Shaft Seal
    GF0003568Courtesy of FORD MOTOR CO.
  19. Remove the EPC solenoid.
    20. Fig 18: Locating EPC Solenoid
    GF0003569Courtesy of FORD MOTOR CO.
  20. Remove the 2-3 accumulator spring retainer.
    21. Fig 19: Locating 2-3 Accumulator Spring Retainer
    GF0003570Courtesy of FORD MOTOR CO.
  21. Remove the 2-3 accumulator piston.
    1. Remove the 2-3 accumulator spring.
    2. Remove the 2-3 accumulator piston.
    22. Fig 20: Identifying 2-3 Accumulator Piston & Spring
    GF0003571Courtesy of FORD MOTOR CO.
  22. Using the special tool, remove the reverse band servo retaining ring.
    23. Fig 21: Removing Reverse Band Servo Retaining Ring Using Special Tool
    GF0003572Courtesy of FORD MOTOR CO.
  23. Remove the reverse band servo.
    • Remove the reverse band servo cover.
    • Remove the reverse band servo piston and rod assembly.
    • Remove the reverse band servo spring.
    24. Fig 22: Identifying Reverse Band Servo Piston And Rod
    GF0003573Courtesy of FORD MOTOR CO.
    CAUTION: If the tool is not available, extreme care must be taken. Spring pressure will force the overdrive servo piston assembly out of the case. Case bore damage may result from trying to pry on the internal retaining ring.
  24. Using the special tool, compress the piston spring, then remove the overdrive servo piston retainer.
    25. Fig 23: Removing Overdrive Servo Piston Retainer
    GF0003574Courtesy of FORD MOTOR CO.
  25. Remove the overdrive servo piston.
    1. Remove the overdrive servo piston.
    2. Remove the overdrive servo piston return spring.
    26. Fig 24: Removing Overdrive Servo Piston Return Spring
    GF0003575Courtesy of FORD MOTOR CO.
  26. Compress the 1-2 accumulator cover and remove the 1-2 accumulator piston retaining ring.
    27. Fig 25: Locating Accumulator Piston Retaining Ring
    G03888654Courtesy of FORD MOTOR CO.
  27. Remove the 1-2 accumulator upper spring.
    1. Remove the 1-2 accumulator spring cover.
    2. Remove the inner and outer 1-2 accumulator springs.
    3. Remove the 1-2 accumulator.
    4. Remove the 1-2 accumulator upper spring.
    28. Fig 26: Identifying 1-2 Accumulator Upper Spring
    GF0003576Courtesy of FORD MOTOR CO.
  28. Using the special tools, remove the extension housing seal.
    29. Fig 27: Removing Extension Housing Seal Using Special Tools
    GF0003505Courtesy of FORD MOTOR CO.
    NOTE: Rear wheel drive (RWD) extension housing shown, four wheel drive (4WD) extension housing similar.
    NOTE: These bolts have been coated with a sealant. High break torque may be required to remove these bolts.
  29. Remove the extension housing.
    1. Remove the 4 bolts and 2 nuts.
    2. Remove the extension housing and the extension housing gasket.
    30. Fig 28: Removing Extension Housing And Extension Housing Gasket
    GF0003577Courtesy of FORD MOTOR CO.
  30. Remove the parking pawl.
    1. Remove the parking pawl shaft.
    2. Remove the parking pawl return spring.
    3. Remove the parking pawl.
    31. Fig 29: Identifying Parking Pawl Return Spring
    GF0003578Courtesy of FORD MOTOR CO.
  31. Rotate the transmission to the vertical position with the output shaft toward the floor.
    32. CAUTION: Extreme care must be taken during transmission connector removal. Do not pull on wires or use a hammer on the connector body.
  32. Place a screwdriver on the flat portion of the connector and push the connector out through the bottom of the case.
    33. Fig 30: Locating Connector
    GF0003579Courtesy of FORD MOTOR CO.
  33. Using the special tools, remove the front pump seal.
    34. Fig 31: Removing Front Pump Seal Using Special Tools
    GF0003580Courtesy of FORD MOTOR CO.
    NOTE: These bolts have been coated with sealant. High break torque may be required to remove the bolts.
  34. Remove the front bolts.
    35. Fig 32: Locating Front Bolts
    GF0003581Courtesy of FORD MOTOR CO.
  35. Using the special tools, remove the front pump support.
    36. Fig 33: Removing Front Pump Support
    GF0003582Courtesy of FORD MOTOR CO.
  36. Remove and discard the pump gasket.
    37. NOTE: For assembly, note the location of the check ball and the intermediate clutch piston return spring pack indent during disassembly.
  37. Remove the intermediate clutch piston return spring pack.
    38. Fig 34: Locating Intermediate Clutch Piston Return Spring Pack
    GF0003583Courtesy of FORD MOTOR CO.
  38. If equipped, remove the intermediate clutch anti-rattle clip.
    39. Fig 35: Identifying Intermediate Clutch Anti-Rattle Clip
    G03888735Courtesy of FORD MOTOR CO.
    CAUTION: Remove the assembly carefully to prevent damage to the overdrive band friction material by the reverse clutch drive lugs.
  39. Remove the following components as an assembly:
    • Intermediate clutch pack
    • Intermediate one-way clutch
    • Reverse clutch
    • Forward clutch assembly
    40. Fig 36: Removing Clutch Assembly
    GF0003584Courtesy of FORD MOTOR CO.
  40. Disengage and remove the overdrive band.
    41. Fig 37: Locating Overdrive Band
    GF0003585Courtesy of FORD MOTOR CO.
  41. Remove the forward clutch hub and the No. 3 forward clutch hub front bearing.
    42. Fig 38: Locating Forward Clutch Hub & No. 3 Forward Clutch Hub Front Bearing
    GF0003586Courtesy of FORD MOTOR CO.
  42. Remove the intermediate stub shaft.
    43. Fig 39: Locating Intermediate Stub Shaft
    GF0003587Courtesy of FORD MOTOR CO.
  43. Align the reverse sun shell with the overdrive band anchor pin for removal.
    44. Fig 40: Aligning Reverse Sun Shell With Overdrive Band Anchor Pin
    GF0003588Courtesy of FORD MOTOR CO.
  44. Remove the following components as an assembly:
    • Forward clutch sun gear
    • No. 5 forward clutch sun gear bearing
    • Reverse clutch sun gear
    • No. 4 forward clutch hub bearing
    45. Fig 41: Removing Clutch Assembly Components
    GF0003589Courtesy of FORD MOTOR CO.
  45. Remove the center support retaining ring and note location for assembly.
    46. Fig 42: Locating Center Support Retaining Ring
    GF0003590Courtesy of FORD MOTOR CO.
  46. Remove the case-to-planet support spring.
    47. Fig 43: Identifying Case-To-Planet Support Spring
    GF0003591Courtesy of FORD MOTOR CO.
  47. Remove the planetary gear support and planetary as an assembly.
    48. Fig 44: Locating Planetary Gear Support
    GF0003592Courtesy of FORD MOTOR CO.
  48. Remove the reverse clutch band.
    49. Fig 45: Locating Reverse Clutch Band
    GF0003593Courtesy of FORD MOTOR CO.
  49. Remove the retaining ring.
    50. Fig 46: Locating Retaining Ring
    GF0003594Courtesy of FORD MOTOR CO.
  50. Remove the direct clutch pack.
    51. Fig 47: Identifying Direct Clutch Pack
    G03888747Courtesy of FORD MOTOR CO.
  51. Remove the No. 8 bearing.
    52. Fig 48: Locating No. 8 Bearing
    G03888748Courtesy of FORD MOTOR CO.
  52. Remove the output shaft and output shaft ring gear assembly.
    53. Fig 49: Locating Output Shaft And Output Shaft Ring Gear Assembly
    GF0003595Courtesy of FORD MOTOR CO.
  53. Remove the No. 9 case rear bearing.
    54. Fig 50: Locating No. 9 Case Rear Bearing
    GF0003596Courtesy of FORD MOTOR CO.
  54. Inspect and if necessary, using the special tools, remove the rear case bushing.
    55. Fig 51: Removing Rear Case Bushing Using Special Tool
    GF0003597Courtesy of FORD MOTOR CO.
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