LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2004 >> Explorer Sport Trac 4D Utility >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle/Transmission >> Disassembly And Assembly Of Subassemblies >> Front Planetary Gears >> Disassembly
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Front Planetary Gears: Disassembly

    CAUTION: New planetary gears must installed. Do not restake them.
    NOTE: Individual parts of the planetary carriers are not serviceable.
    Fig 1: Identifying Shaft Retaining Pins
    G03234668Courtesy of FORD MOTOR CO.
  1. Before installing a planetary assembly, the shaft retaining pins should be checked for adequate staking. Use a new planetary assembly if either of the following conditions exist. Check the pins and shafts in the planetary assemblies for loose fit and/or complete disengagement.
  2. Inspect the pinion gears for damaged or excessively worn teeth and for free rotation.
    Fig 2: Inspecting Pinion Gears
    G03234669Courtesy of FORD MOTOR CO.
  3. Inspect the front one-way clutch inner race for scoring. If the front one-way clutch inner race is scored or damaged, installation of new front planetary gear, center shaft and one-way will be needed.
    Fig 3: Inspecting Front One-Way Clutch Inner Race For Scoring
    G03234670Courtesy of FORD MOTOR CO.
  4. Inspect the inner and outer races for scored or damaged surface areas where the rollers contact the races.
  5. Remove and inspect the No. 2 front planetary thrust bearing on the nose of the front planetary gear carrier assembly.
    Fig 4: Inspecting No. 2 Front Planetary Thrust Bearing
    G03234671Courtesy of FORD MOTOR CO.
  6. NOTE: Note the location of the part number stamped on the coast clutch adapter for assembly.
    NOTE: Inspect the sun gear for damaged or worn teeth.
    Fig 5: Removing Front Sun Gear
    G03234672Courtesy of FORD MOTOR CO.
  7. Remove the front sun gear.
    1. Remove the coast clutch to front carrier adapter.
    2. Remove the front sun gear.
  8. Inspect the No. 12 bearing for damage.
    Fig 6: Inspecting No. 12 Bearing For Damage
    G03234673Courtesy of FORD MOTOR CO.