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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 252 (Front Drive Axle) >> Repair Instructions >> Front Differential Carrier Assembly Replacement (LGX or LF4) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Intermediate Wheel Drive Shaft, Front Differential Carrier Assembly And Oil Pan
    GM2856986Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The intermediate wheel drive shaft and front differential carrier are to be installed as a assembly.

  1. Position the front differential carrier (1) on a transmission jack.
  2. Firmly secure the differential to the transmission jack.
  3. With the front differential carrier firmly attached to the jack, install the intermediate wheel drive shaft (2) and the front differential carrier (1) to the oil pan (3).
    4. Fig 2: Front Differential Carrier To Rear Oil Pan Mounting Bolts
    GM2856985Courtesy of GENERAL MOTORS COMPANY
  4. Install the front differential carrier (2) to the rear oil pan mounting bolts (1) hand tight.
    5. Fig 3: Front Differential Carrier & Front Oil Pan Mounting Bolts
    GM2856984Courtesy of GENERAL MOTORS COMPANY
  5. Install the front differential carrier (2) to the front oil pan mounting bolts (1) hand tight.
    6. CAUTION:

    Refer to Fastener Caution .

  6. Tighten the front differential carrier front and rear bolts as follows:
    1. Tighten the front differential carrier to the rear of the oil pan bolts first pass evenly to 30 N.m (22 lb ft).
    2. Tighten the front differential carrier to the rear of the oil pan bolts a second pass an additional 180 degrees using the EN-45059  sensor.
    3. Tighten the front differential carrier to the front of the oil pan bolts first pass evenly to 30 N.m (22 lb ft).
    4. Tighten the front differential carrier to the front of the oil pan bolts a second pass an additional 90 degrees using the EN-45059  sensor.
  7. Remove the transmission jack from the front differential carrier.
  8. Using the engine support fixture, carefully raise the engine assembly to it's original position.
  9. Install the front wheel drive intermediate shaft housing. Refer to Front Wheel Drive Intermediate Shaft Housing Replacement .
  10. Install the left front wheel drive shaft. Refer to Front Wheel Drive Shaft Replacement - Left Side .
  11. Install the right front wheel drive shaft. Refer to Front Wheel Drive Shaft Replacement - Right Side .
  12. Install the front propeller shaft. Refer to Front Axle Propeller Shaft Replacement (LGX, LTG) .
  13. Install the drivetrain and front suspension frame assembly. Refer to Drivetrain and Front Suspension Frame Removal and Installation (LF4)Drivetrain and Front Suspension Frame Removal and Installation (LGX, LTG) .
  14. Fill the front differential. Refer to Front Axle Lubricant Level Inspection .
  15. Lower the vehicle.
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