Toyota Corolla 1988-1997 Repair Guide

Pinion Seal

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REMOVAL & INSTALLATION



This procedure applies to the All-Trac models only.

  1. Matchmark the differential and driveshaft flanges.
  2.  
  3. Remove the four flange bolts, nuts and washers.
  4.  
  5. Disconnect the driveshaft from the differential.
  6.  
  7. With a hammer and a cold chisel, loosen the staked part of the locking nut.
  8.  
  9. Using SST No. 09330-00021 or equivalent to hold the flange, remove the locking nut.
  10.  
  11. Remove the plate washer.
  12.  
  13. Using SST No. 09557-22022 or equivalent, remove the companion flange.
  14.  
  15. Using SST No. 09308-10010 or equivalent seal puller, remove the front oil seal and then remove the oil slinger.
  16.  
  17. Using SST No. 09556-22010 or equivalent bearing puller, remove the front bearing.
  18.  
  19. Remove the front bearing spacer.
  20.  

To install the front seal and bearing
  1. Install a new bearing spacer and bearing onto the shaft.
  2.  
  3. Install the oil slinger onto the shaft.
  4.  
  5. Using SST No. 09554-22010 or equivalent, drive in the new oil seal to a depth of 0.157 inch (4mm).
  6.  
  7. Coat the lip of the new oil seal with multi-purpose grease.
  8.  
  9. Using the removal tool, install the companion flange.
  10.  
  11. Install the plate washer.
  12.  
  13. Coat the threads of the new nut with gear oil.
  14.  
  15. Using the removal tool to hold the flange, tighten the companion flange to 80 ft. lbs. (108 Nm).
  16.  
  17. Check and adjust the drive pinion preload as follows:
    1. Using a inch lb. torque wrench, measure the preload of the backlash between the drive pinion and the ring gear. Preload for a new bearing is 8-14 inch lbs. (0.9-1.5mm) and 4-7 inch lbs. (0.4-0.7mm) for a used bearing.
    2.  
    3. If the preload is greater that the specified limit, replace the bearing spacer.
    4.  
    5. If the preload is less than specification, re-tighten the nut in 9 ft. lbs. (12 Nm) increments until the specified preload is reached. Do not exceed a maximum torque of 174 ft. lbs. (235 Nm).
    6.  
    7. If the maximum torque is exceeded, replace the bearing spacer and repeat the bearing preload procedure. Preload CANNOT be reduced by simply backing off on the pinion nut.
    8.  

  18.  
  19. Stake the drive pinion nut.
  20.  
  21. Align the driveshaft and differential flange matchmarks.
  22.  
  23. Install the flange bolts and tighten to 27 ft. lbs. (36 Nm).
  24.  
  25. Remove the differential FILL plug and check the oil level. Fill the differential to the proper level (about 1.2 quarts) with new API GL-5 hypoid gear oil.
  26.  
  27. Install and tighten the fill plug with a new gasket if so equipped.
  28.  

 
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