Disassembly And Assembly Of Subassemblies: Mainshaft: Assembly

2010 Mercury Mariner Hybrid, AWDSECTION Assembly
WARNING: This page is about a different car, the 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Be careful with the orientation of the reverse main gear.
  1. Position the reverse main gear on the mainshaft.
  2. Fig 1: Identifying Reverse Main Gear Orientation
    GF0025383Courtesy of FORD MOTOR CO.
  3. Using the special tool, install a new reverse main gear.
  4. Fig 2: Installing Reverse Main Gear
    GF0025384Courtesy of FORD MOTOR CO.
  5. Install the 1st main gear.
  6. Using the special tools, install the 1st main gear bushing.
  7. Fig 3: Installing 1st Main Gear Bushing
    GF0025385Courtesy of FORD MOTOR CO.
  8. Install the 1st gear needle bearing.
  9. Install the 1st gear synchronizer ring.
  10. NOTE: Make sure the synchronizer side with 3 notches is facing 1st gear and the synchronizer side with 4 notches is facing 2nd gear.
  11. Position a new 1st and 2nd gear synchronizer assembly on the mainshaft.
  12. Fig 4: Identifying Synchronizer Sides
    GF0025362Courtesy of FORD MOTOR CO.
  13. Using the special tools, install the 1st and 2nd gear synchronizer assembly.
  14. Fig 5: Installing 1st & 2nd Gear Synchronizer Assembly
    GF0025386Courtesy of FORD MOTOR CO.
  15. Install the 2nd gear synchronizer ring.
  16. Using the special tools, install the 2nd gear bushing.
  17. Fig 6: Installing 2nd Gear Bushing
    GF0025387Courtesy of FORD MOTOR CO.
  18. Install the 2nd gear needle bearing.
  19. Install the 2nd main gear.
  20. NOTE: Be careful with the orientation of the 3rd main gear.
  21. Using the special tools, install a new 3rd main gear.
  22. Fig 7: Installing 3rd Main Gear
    GF0025388Courtesy of FORD MOTOR CO.
  23. Install the 3rd/4th main gear shaft spacer.
  24. NOTE: Only one adjusting shim can be installed.
  25. Measure the mainshaft components as indicated to select the appropriate 4th main gear adjusting shim. Refer to the following table for shim thicknesses and install the 4th main gear adjusting shim:
    mm Inch
    0.52 0.021
    0.60 0.024
    0.68 0.027
    0.76 0.030
    0.84 0.033
    0.92 0.036
    1.00 0.039
    1.08 0.043
  26. Fig 8: Measuring Mainshaft Components
    GF0025389Courtesy of FORD MOTOR CO.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
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  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.