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Crank Seals

Front Seals   Nat/Tim SKF/CR  
Keith Black Gear Drive 2.156 x 3.189 x .437 450621    
TFX RCD Gear Drive - std , 2.2" 2.187 x 3.0 x .375 472018    
TFX RCD Gear Drive - small , 2.125" 2.125 x 3.0 x .375 472015    
TFX RCD Gear Drive - inside (bearing support) 2.125 x 2.875 x .4375   21091 *fluoro
TFX RCD Gear Drive - outside (bearing support)        
TFX TFX(manufacturer) Gear Drive - std , 2.2" 2.187 x 2.875 x .375 473244    
TFX TFX(manufacturer) Gear Drive - std , 2.2" 2.187 x 2.875 x .4375   21736  
TFX TFX(manufacturer) Gear Drive - small, 2.125"  2.125 x 2.875 x .4375 450867 21098 *nitrile
Note:
tfx (manufacturer) have 4 bolts on seal cover
       
         
Rear Seals  STD Crank Chrysler part number 4227926  
Rear Seals  3" Crank