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Final Drive Carrier and Differential Assembly: Disassembly

  1. Inspect the differential for wear or damage. Install new components as required.
    1. Differential housing
    2. Differential bearing shim
    3. Differential housing bearing
    4. Pinion shaft roll pin
    5. Pinion shaft
    6. Pinion thrust washer
    7. Pinion gear
    8. Side gear thrust washer
    9. Differential side gear
    Fig 1: Identifying Differential Components
    G02740868Courtesy of FORD MOTOR CO.
  2. CAUTION: Do not disassemble the planet carrier.
    NOTE: If the measurement exceeds specification, install a new complete final drive carrier. If the measurement is within specification, continue with the diagnostic procedure.
    Fig 2: Measuring Final Drive Planet Gear End Play
    G02740869Courtesy of FORD MOTOR CO.
  3. Measure the final drive planet gear end play with a feeler gauge.
  4. NOTE: Do not remove the final drive pinion shaft retaining ring.
    Fig 3: Removing Differential Pinion Shaft
    G02740870Courtesy of FORD MOTOR CO.
  5. Remove the differential pinion shaft.
    1. Remove the pinion shaft roll pin.
    2. Remove the differential pinion shaft.
  6. Remove the pinion gears and thrust washers.
    • Turn the differential pinion gears 90 degrees and remove.
    Fig 4: Removing Pinion Gears And Thrust Washers
    G02740871Courtesy of FORD MOTOR CO.
  7. Remove the differential side gears and differential side gear thrust washers.
    Fig 5: Removing Differential Side Gears And Differential Side Gear Thrust Washers
    G02740872Courtesy of FORD MOTOR CO.
  8. Clean all parts thoroughly in clean solvent and blow dry with moisture-free regulated compressed air.
  9. Inspect the differential parts for damage and wear.
    • Gear teeth.
    • Thrust washer surface.
    • Thrust bearing surface.
    • Pinion shaft.
  10. Inspect the final drive planet and carrier.
    1. Pinion gear teeth.
    2. Thrust bearing surfaces.
    3. Bushing surfaces.
    Fig 6: Inspecting Final Drive Planet And Carrier
    G02740873Courtesy of FORD MOTOR CO.