300, 300C & Magnum 2006-2008, Charger 2006-2008

Rear Main Seal

Print

Removal & Installation



2.7L & 3.5L Engines
  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Disconnect negative battery cable.
  4.  
  5. Raise the vehicle.
  6.  
  7. Remove splash shield retaining bolts and splash shield.
  8.  
  9. Remove the structural collar.
  10.  
  11. Remove transmission
  12.  
  13. Remove flex plate attaching bolts, backing plate and flex plate.
  14.  
  15. Remove oil pan.
    NOTE
    The integrated stamped steel rear crankshaft seal is not interchangeable with the cast aluminum rear seal adapter and seal assembly.

  16.  
  17. Remove seal retainer attaching screws.
  18.  
  19. Remove the crankshaft rear oil seal/adapter.

    Click image to see an enlarged view

    Fig. Rear main seal/retainer assembly-2.7L engine

  20.  

To install:


NOTE
The integrated rear crankshaft seal is not interchangeable with the cast aluminum rear seal adapter and seal assembly.

  1. Clean all sealing surfaces.

    Click image to see an enlarged view

    Fig. Install seal assembly (2) using special tool 6926-1(1)-2.7L engine

  2.  
  3. Install seal assembly using special tool 6926-1.
  4.  
  5. Install seal retaining bolts finger tight.
    NOTE
    The following steps must be performed to prevent oil leaks at sealing joints.



    Click image to see an enlarged view

    Fig. Attach Special Tools 8225 (1) to pan rail using the oil pan fasteners-2.7L engine

  6.  
  7. Attach Special Tools 8225 to pan rail using the oil pan fasteners.
    NOTE
    Make sure that the -2.7L- stamped on the special tool is facing the cylinder block (flat side of tools against pan rail).

  8.  
  9. While applying firm pressure to the seal assembly against Special Tools 8225, tighten seal assembly screws to 105 inch lbs. (12 Nm).
  10.  
  11. Remove special tool 8225.
  12.  
  13. Install oil pan.
  14.  
  15. Install flex plate, backing plate, and attaching bolts.
  16.  
  17. Install transmission.
  18.  
  19. Install lower splash shield retaining bolts and splash shield.
  20.  
  21. Lower vehicle.
  22.  
  23. Fill with oil.
  24.  

5.7L Engines
  1. Before servicing the vehicle, refer to the Precautions section.
    NOTE
    This procedure can be performed in vehicle.

  2.  
  3. If being performed in vehicle, remove the transmission.
  4.  
  5. Remove the flexplate.
    NOTE
    The crankshaft oil seal cannot be reused after removal.


    NOTE
    The crankshaft rear oil seal remover Special Tool 8506 must be installed deeply into the seal. Continue to tighten the removal tool into the seal until the tool cannot be turned farther. Failure to install tool correctly the first time will cause tool to pull free of seal without removing seal from engine.

  6.  
  7. Using Special Tool 8506 (1), remove the crankshaft rear oil seal (2).

    Click image to see an enlarged view

    Fig. Rear main seal removal-5.7L engine

  8.  

To install:

Click image to see an enlarged view

Fig. Rear main seal installation-5.7L engine


WARNING
The rear seal must be installed dry for proper operation. Do not lubricate the seal lip or outer edge.

  1. Position the plastic seal guide (2) onto the crankshaft rear face. Then position the crankshaft rear oil seal (3) onto the guide.
  2.  
  3. Using Special Tools 8349 Crankshaft Rear Oil Seal Installer (1) and C-4171 Driver Handle, with a hammer, tap the seal (3) into place. Continue to tap on the driver handle until the seal installer seats against the cylinder block crankshaft bore.
  4.  
  5. Install the flexplate.
  6.  
  7. Install the transmission.
  8.  

 
label.common.footer.alt.autozoneLogo