Installation Drive Pinion Assembly: Notes

Press-fit the drive pinion bearing outer race into the carrier case with tool.
1. Tool number : ST37820000 ( - )
NOTE: First lightly tap outer race using a hammer, place the carrier case and outer race parallel. Then press-fit outer race with press.

Fig 1: Pressing-Fit Drive Pinion Bearing Outer Race Into Carrie
Courtesy of NISSAN MOTOR CO., U.S.A.
Temporarily install the removed drive pinion height adjusting washer or same thickness washer to drive pinion.

Fig 2: Displaying Drive Pinion Height Adjusting Washer
Courtesy of NISSAN MOTOR CO., U.S.A.
If the hypoid gear set has been replaced, select the adjusting washer.
1. Washer selection equation:
  1. T = T0 + (t1 - t2)
  2. T = Correct washer thickness
  3. T0 = Removed washer thickness
  4. t1 = Old drive pinion head letter
    1. (machined tolerance 1/100 mm x 100)
  5. t2 = New drive pinion head letter
    1. (machined tolerance 1/100 mm x 100)
1. Example:
  1. In case the TO = 3.21, t1 = +2, t2 = -1
  2. T = 3.21 + ((2 x 0.01) - (-1 x 0.01)) = 3.24
Temporarily install washer to the drive pinion.

NOTE: Select the washer form the drive pinion height adjusting washer selecting table. Refer to AVAILABLE PINION HEIGHT ADJUSTING WASHERS .
Press-fit the drive pinion bearing onto the drive pinion using drift and press.
1. Tool number : ST30032000 ( - )
  
  Fig 4: Pressing-Fit Drive Pinion Bearing Onto Drive Pinion
  Courtesy of NISSAN MOTOR CO., U.S.A.
NOTE: Note the direction of washer.
Install the drive pinion and drive pinion bearing as follows:
1. Apply gear oil to the bearing portion.
2. Install the drive pinion and drive pinion bearing (front side) into the carrier case.
  CAUTION: Do not install the drive pinion adjusting washer and drive pinion bearing adjusting washer at this time.
3. Install the companion flange without installing oil seal.
4. Apply oil drive pinion lock nut threads and seating surface, then temporarily install it.
5. Tighten the drive pinion lock nut until it reach standard preload.
  1. Tool number : KV40104000 ( - )
  2. Pinion bearing preload without oil seal :
    1. 0.78 - 1.57 N.m (0.08 - 0.16 kg-m, 7 - 13 in-lb)

CAUTION: Tighten the drive pinion nut by very small degrees until the specified preload is achieved. Do not tighten nut more than necessary.

Fig 5: Tightening Drive Pinion Nut

Courtesy of NISSAN MOTOR CO., U.S.A.