Nissan Sentra/Pulsar/NX 1982-1996 Repair Guide

Pinion Seal

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REMOVAL & INSTALLATION



See Figures 1, 2, 3 and 4

  1. Following the procedures outlined in this section, remove the driveshaft assembly.
  2.  
  3. Remove the pinion nut and pull the pinion flange off using a gear puller.
  4.  
  5. Pry the seal from the case using a suitable prybar.
  6.  

To install:
  1. Install the new pinion seal using a seal installer ST30720000 or equivalent.
  2.  
  3. Install the pinion flange and nut. While holding the pinion flange using special tool J34311 or equivalent, tighten the nut to 123-145 ft. lbs. (167-196 Nm).
  4.  
  5. Using an inch lbs. torque wrench, turn the drive pinion in both directions, several times, and measure bearing preload. The preload should be 6.5-13.5 inch lbs. (0.74-1.52 Nm).
  6.  

In order to accurately check bearing preload, both rear halfshafts must be disconnected from rear axle housing.

  1. Install the driveshaft assembly.
  2.  
  3. Check the differential fluid level and fill if necessary.
  4.  



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Fig. Fig. 1: Check the pinion bearing preload using a torque wrench



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Fig. Fig. 2: Drive the pinion seal into position using a seal installation tool



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Fig. Fig. 3: Hold the pinion flange and torque the pinion nut to the proper specification



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Fig. Fig. 4: Exploded view of rear axle assembly

 
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