Toyota Tacoma 2002-06

Pinion Seal


Removal & Installation

  1. Before servicing the vehicle, refer to the Precautions Section.
  3. Remove the engine undercover.
  5. Drain the differential oil.
  7. Remove or disconnect the following:

    Front driveshaft
    Companion flange nut, by unstaking it
    Companion flange
    Pinion seal, using an extractor


To install:

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Fig. Using a chisel and hammer, loosen the staked part of the nut. Hold the flange with SST 09950-30010 or equivalent and remove the nut

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Fig. Screw-type extractor from Tool 09950-30010

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Fig. Extractor fits into the Seal Removal Tool 09308-10010

  1. Install a new oil seal, to a depth of 0.059 in. (1.5mm) below the lip, using a seal driver.
  3. Lubricate the seal lip with multi-purpose grease.
  5. Install or connect the following:

    Companion flange, coat the threads with multi-purpose grease
    New companion flange nut. Tighten it to 89 ft. lbs. (120 Nm).

  7. Measure the bearing preload, using a torque wrench. The correct preload should be 5-9 inch lbs. (0.6-1.0 Nm) for a used bearing or 10-17 inch lbs. (1-2 Nm) for a new bearing.
    If the preload is greater that specified, replace the bearing spacer. If the preload is less than specified, tighten the companion flange nut in 108 inch lbs. (13 Nm) increments until the correct preload is achieved. Maximum torque for the nut is 173 ft. lbs. (235 Nm). If the value is exceeded, the bearing spacer must be replaced; do not back off the flange nut to lower the torque or preload.

  9. Install the front driveshaft by aligning the matchmarks.
  11. Check the companion flange run-out; maximum allowable run-out is 0.003 in. (0.10mm).
  13. Stake the pinion flange nut.
  15. Refill the differential with oil.