Durango, 2001-2005

Pinion Seal

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Removal & Installation



  1. Before servicing the vehicle, please familiarize yourself with safety procedures.
  2.  
  3. Remove both half shafts.
  4.  
  5. Mark propeller shaft and pinion flange for installation reference.
  6.  
  7. Remove front propeller shaft.
  8.  
  9. Rotate pinion gear three to four times, to verify pinion rotates smoothly.
  10.  
  11. Record pinion flange rotating torque with an inch pound torque wrench for installation reference.
  12.  
  13. Hold flange with Holder 6719 and four bolts and washers.
  14.  
  15. Remove pinion nut.
  16.  
  17. Remove flange with Remover C-452.
  18.  
  19. Remove pinion seal with a pry tool.

    Click image to see an enlarged view

    Fig. Removing the companion flange

    Removing the companion flange

    Click image to see an enlarged view

    Fig. Measuring pinion rotating torque

    Measuring pinion rotating torque

    Click image to see an enlarged view

    Fig. Pinion seal installer

    Pinion seal installer

    Click image to see an enlarged view

    Fig. Tightening the pinion nut

    Tightening the pinion nut
  20.  

To install:

  1. Apply a light coating of gear lubricant on the lip of pinion seal.
  2.  
  3. Install seal with Installer C-3972-A and Handle C-4171.
  4.  
  5. Install pinion flange onto the pinion with Installer C-3718 and holder.
  6.  
  7. Hold pinion flange with Holder 6719A.
  8.  
  9. Install new pinion nut and tighten nut until there is zero bearing end-play.
    CAUTION
    Do not exceed the minimum tightening torque when installing the companion flange at this point. Damage to the collapsible spacer or bearings may result.

  10.  
  11. Tighten pinion nut to 271 Nm (200 ft. lbs.).
    CAUTION
    Never loosen pinion nut to decrease pinion bearing rotating torque and never exceed specified preload torque. If preload torque or rotating torque is exceeded a new collapsible spacer must be installed.

  12.  
  13. Record pinion flange rotating torque, with a torque wrench. Rotating torque should be equal to the reading recorded during removal plus an additional 0.56 Nm (5 inch lbs.).
  14.  
  15. If rotating torque is low, tighten pinion nut in 6.8 Nm (5 ft. lbs.) increments until rotating torque is achieved.
    CAUTION
    If maximum tightening torque is reached prior to reaching the required rotating torque, the collapsible spacer may have been damaged. Replace the collapsible spacer.

  16.  
  17. Install propeller shaft with reference marks aligned.
  18.  
  19. Install half shafts.
  20.  

 
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