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Home >> Infiniti >> 2024 >> QX55 Essential >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (2 Of 2) >> Removal And Installation >> Differential Side Oil Seal >> Removal and Installation

Removal and Installation

REMOVAL 

Never Reuse These Parts Part # Prefix For additional information:
Differential side oil seal 38342Q Exploded View 
Wheel hub lock nut 40262 Exploded View
Nut 52040BB Exploded View
  1. Remove front drive shaft. Refer to Removal and Installation (LH) or Removal and Installation (RH) .
  2. Using a suitable tool remove the differential side oil seal.
    CAUTION:

    When removing the differential side oil seal, be careful not to scratch the oil seal mounting surfaces of the transaxle case and converter housing.

INSTALLATION 

Note the following and installation is in the reverse order of removal.

CAUTION:

When inserting the drive shaft, be sure to use Tool.

Tool number : KV38107900 (NI-52469-1)
  1. Measure lip height (A) and determine differential side oil seal insertion reference value (B) from the list to calculate lip protrusion (C).
    GNSDB110402Courtesy of NISSAN NORTH AMERICA, INC.
    (1) : Differential side oil seal
    (2) : Converter housing or transaxle case
    Lip protrusion (C) : C=A-B
    Differential side oil seal insertion reference value (B) : 1.8 mm (0.071 in)
    CAUTION:
    • Never reuse differential side oil seal.
    • Put a mark on the measurement area and measure height of seal lip at four points diagonally using suitable tool.
    NOTE: SYMBOL Since seal lips have a tolerance of ± 0.3 mm (± 0.012 in) at maximum due to manufacturing tolerances or packing conditions, it is necessary to measure the seal lip height beforehand to clarify the tolerance.
  2. As an indicator of the parallelism and insertion depth, cut a masking tape (1) to specified width [add 1 mm (0.04 in) to the value calculated from the tip of differential side oil seal lip] and affix to the differential side oil seal.
    GNSDB111017Courtesy of NISSAN NORTH AMERICA, INC.
  3. Install the differential side oil seal using a drift [outer diameter: 57 mm (2.24 in), inner diameter: 53 mm (2.09 in)] according to the guide of the masking tape.
    CAUTION:
    • If differential side oil seal is inserted deeper than the reference value, use a new differential side oil seal and perform the steps again.
    • Apply CVT fluid to the differential side oil seal lip and around the oil seal.
  4. Remove masking tape.
  5. Adjust as instructed below to optimize the protrusion size and parallelism.
    CAUTION:

    If differential side oil seal is inserted deeper than the reference value, use a new differential side oil seal and perform the steps again.

    • Protrusion size (A)
      GNSDB110308Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION:

      Protrusion must fall within ± 0.5mm (0.020 in) of calculated size.

    • Parallelism at four diagonal points (SYMBOL )
      GNSDB109596Courtesy of NISSAN NORTH AMERICA, INC.
      CAUTION:

      The difference among four diagonal points must be within 0.3 mm (0.012 in).

      NOTE: SYMBOL If differential side oil seal is uneven while installing, tilt suitable tool.
  6. Check that the protrusion size and parallelism are adequate.