FixVault
Home › Hummer › 2007 › H3 Standard › Repair and Diagnosis › Drivelines & Axles › Differentials & Drive Axles › Front Drive Axle › Repair Instructions › Differential Replacement › Installation Procedure

Installation Procedure

  1. Lubricate the differential side bearings with axle lubricant. Use the proper fluid. Refer to Fluid and Lubricant Recommendations .
    2. Fig 1: View Of J-45222-10 & J 45222 Installed On Front Axle Housing
    GM1306028Courtesy of GENERAL MOTORS CORP.
  2. Install the J-45222-10  (1) and the J 45222  (2) to the front axle housing as shown. See Special Tools .
    3. Fig 2: View Of J 8001-1, J 8001-2, J 34178 & J 8001-3
    GM1306155Courtesy of GENERAL MOTORS CORP.
  3. Install the J 8001-1  (2), the J 8001-2  (3) the J 34178  (4, 6) and the J 8001-3  (5) as shown. See Special Tools .
  4. Preload the J 8001-3  (5) approximately 3/4 of a turn clockwise.
  5. Rotate the indicator housing to align the indicator needle of the J 8001-3  (5) and the dial indicator face to ZERO.
  6. Spread the axle housing by turning the clevis screw of the J 34178  while observing the J 8001-3  . Spread the housing just enough to remove the differential assembly. DO NOT spread the housing more than 1.02 mm (0.040 in). See Special Tools .
    7. Fig 3: View Of Bearing Cap Bolts
    GM1306150Courtesy of GENERAL MOTORS CORP.
  7. Place the case with the bearing cups installed into the axle housing.
  8. Install the bearing caps and bolts. Do not torque the bearing cap bolts at this time.
  9. Adjust the differential side bearing preload. Refer to Drive Pinion and Ring Gear Replacement .
  10. Adjust the backlash. Refer to Backlash Inspection and Adjustment .
  11. Perform the gear tooth contact pattern check. Refer to Gear Tooth Contact Pattern Inspection .
    12. NOTE: Refer to Fastener Notice .
  12. Tighten the bearing cap bolts.

    Tighten:  Tighten the bearing cap bolts to 63 N.m (46 lb ft).

  13. Install the front axle housing cover gasket.
  14. Install the front axle housing cover and bolts.

    Tighten:  Tighten the bolts to 30 N.m (22 lb ft).

  15. Install the front axle shaft housing tube assembly to the front drive axle housing.
  16. Install the bolts retaining the front axle shaft housing tube assembly to the front drive axle housing.

    Tighten:  Tighten the front axle shaft tube to axle bolts to 60 N.m (44 lb ft).

  17. Remove the J-45935  from the front drive axle housing. See Special Tools .
  18. Install the differential carrier assembly to the vehicle. Refer to Differential Carrier Assembly Replacement .
About FixVault