2026-06-11

Seal - Axle - Front Drive Unit - LH (1st Generation) (Remove and Replace)

Correction Code 39301202

  • 2026-06-11: Added note to use different part number if vehicle has had SB-21-39-001 performed. Added step to check seal part number.
  • 2024-06-17: Updated correction code to 39301202
  • 2023-12-08: Removed alignment check.

Special tool(s) required for this procedure:

Part Number Description
1051509-00-A Output Seal Installation Tool
1454928-00-A TOOL, SEAL PULLER, ADJUSTABLE, MS/MX/M3
Informational PurposesAn informational icon, calling your attention
Note
This procedure is for vehicles built through April 24, 2019. For vehicles built after April 24, 2019, see Seal - Axle - Front Drive Unit - LH (2nd Generation) (Remove and Replace).
Informational PurposesAn informational icon, calling your attention
Note
If SB-21-39-001 has been performed on the vehicle, use seal part number 1108557-00-A.

Removal

  1. Remove the LH halfshaft. See Halfshaft - Front Drive Unit - LH (1st Generation) (Remove and Replace) .
  2. Use the Seal Puller to remove the oil seal from the differential casing.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage component(s).
  3. Inspect the seal and confirm the seal part number. Make sure that the new seal matches the removed seal's part number.

Installation

Installation procedure is the reverse of removal, except for the following:
Informational PurposesAn informational icon, calling your attention
Note
Clean the affected areas before installation.
  • When installing the halfshaft(s) into the drive unit:
    • Make sure that the opening of the snap ring is facing towards the bottom of the drive unit.
    • Do not damage or displace the oil seal.
    • Verify that the halfshaft is fully seated:
      • Carefully push the halfshaft into the drive unit until there is an audible "click" from the halfshaft stub contacting the pinion shaft.
      • There will be a slight pulling sensation on the halfshaft as the halfshaft circlip locks into place.
      • Pull on the inner halfshaft cup to confirm that the circlip is locked into place. If the halfshaft detaches from the drive unit then reinstall the halfshaft and then test that it is fully seated.
  • Use the Output Seal Installation Tool to install the oil seal in the differential casing.
    Warning IconA warning icon, calling your attention to a possibly risky situation
    CAUTION
    Take care not to damage component(s).
  • Make sure that the seal is seated correctly in the differential casing.