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Home >> Saab >> 2001 >> 9-5 Base, 4D Sedan, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Adjustment/Replacement >> Differential >> Fitting

Automatic Transmission: Adjustment/Replacement: Differential: Fitting

  1. Heat the bearing seat for the differential bearing race in the torque converter shell. Fit the bearing race. Make sure the bearing race is all the way home. Fit the bearing race with shims in the gear case.
    Fig 1: Installing Bearing Race
    G03516167Courtesy of SAAB-SCANIA OF AMERICA, INC.
  2. Press new taper roller bearings onto the differential. Use sleeve 87 92 475 and support 87 92 210.
  3. Lubricate the bearings with automatic transmission fluid and fit the differential into the gear case without the crown wheel.
  4. Fit the torque converter shell. Fit only every other bolt.

    Tightening torque 25 Nm (18 lbf ft) 

    Measure the prestress on the differential with a dynamometer 87 92 483 TORQUE WRENCH  and drift 87 91 337 DRIVER, MEASURING DIFFERENTIAL BEARING TORQUE . Rotate until the value has stabilized. Start value:

    Fig 2: Illustration For Step 4
    G03516168Courtesy of SAAB-SCANIA OF AMERICA, INC.
    TIGHTENING TORQUE SPECIFICATIONS

    New bearing  1.0 Nm (7 lbf ft)
    Refitted bearing  0.5 Nm (3.5 lbf ft)
    Fig 3: Measuring Prestress On Differential
    G03516169Courtesy of SAAB-SCANIA OF AMERICA, INC.
  5. If the prestress is not within specified limits, remove the differential and bearing race from the gear case and change shim. If the reading exceeds the specified value, change to a thinner shim. If the reading is lower than the specified value, change to a thicker shim. Shims are available between 1.0- 1.90 mm in small intervals.
  6. Remove the torque converter shell and lift out the differential.
  7. Heat the crown wheel with a hot-air gun for about 5 minutes. Use protective gloves.
    Fig 4: Illustration For Steps 7-9
    G03516170Courtesy of SAAB-SCANIA OF AMERICA, INC.
  8. Fit the crown wheel on the new differential.
  9. Fit new locking washers and fit the bolts.

    Tightening torque 100 Nm (74 lbf ft) 

  10. Bend up the locking washer against the flat surface on the bolt head.
  11. Fit the differential unit.
    Fig 5: Illustration For Steps 11, 13
    G03516171Courtesy of SAAB-SCANIA OF AMERICA, INC.
    IMPORTANT: Make sure the drive shaft bearing surfaces are in good condition.
  12. Clean the sealing surfaces on the gear case and torque converter shell. Use cleaner 30 02 599. Keep the surfaces free from grease.
  13. Fit a new seal in the gear case.
  14. Fit a new oil strainer in the gear case
  15. Apply a bead of flange sealant 93 21 795 approximately 1 mm wide to the gear case as illustrated and fit the torque converter shell. Apply thread locking compound 74 96 284 to the internal bolts. Fit the bolts (different lengths). Tighten the bolts.

    Tightening torque: 30 Nm (22 lbf ft) 

    Fig 6: Tightening Bolts
    G03516172Courtesy of SAAB-SCANIA OF AMERICA, INC.
  16. Fit the oil temperature sensor cover plate with nut, washer and bolt.

    Tightening torque, bolt 25 Nm (19 lbf ft) 

    Tightening torque, nut 10 Nm (7 lbf ft) 

    Fig 7: Illustration For Step 16
    G03516173Courtesy of SAAB-SCANIA OF AMERICA, INC.
  17. Turn the gearbox with turbine shaft 45° downward.
  18. Apply petroleum jelly to the O-rings for the oil pump unit. Align the disc package with a small screwdriver. Fit thrust washers lubricated with petroleum jelly on brake B1/B2.
    Fig 8: Illustration For Step 18
    G03516174Courtesy of SAAB-SCANIA OF AMERICA, INC.
  19. Fit freewheel F1 and the bearing race for brake B1 and B2 on the oil pump unit. Lubricate the bearing race for F1 with petroleum jelly and fit it.
    Fig 9: Illustration For Step 19
    G03516175Courtesy of SAAB-SCANIA OF AMERICA, INC.
  20. Place the oil pump unit so its bolt holes are aligned with those in the gear case. Press the pump unit in place carefully. Tighten the bolts carefully and alternately. Make sure the turbine shaft has an axial clearance of 0.37- 0.9 mm.

    Tightening torque 25 Nm (19 lbf ft) 

    Fig 10: Illustration For Step 20
    G03516176Courtesy of SAAB-SCANIA OF AMERICA, INC.
  21. Turn the gearbox through 45°. Change the TORQUE CONVERTER SEAL . See ADJUSTMENT/REPLACEMENT , TORQUE CONVERTER SEAL .
  22. Fit the torque converter. Use holder 87 91 766 GRIPPING TOOL, TORQUE CONVERTER . Fit locking device 87 92 574 HOLDER .
    Fig 11: Illustration For Step 22
    G03516177Courtesy of SAAB-SCANIA OF AMERICA, INC.
  23. Fit new drive shaft seals. Use drift 83 90 122 DRIFT .
    Fig 12: Installing Drive Shaft Seal
    G03516178Courtesy of SAAB-SCANIA OF AMERICA, INC.
  24. Lift down the gearbox from the stand and remove the holder.
  25. Fit the GEARBOX  in the car. See fitting gearbox assembly.
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