I have the 98.5 24 valve engine and the hub piece the fan clutch bolts to has siezed up. Does anyone know where I can get one?

 

Cummins or Dodge can get you a new fan support assembly. If you press out the bearing a good bearing supply house can supply you with a new bearing to press in.

If you are somewhere cold, you can use a shorter belt and bypass the fan support until the daytime highs get into the 50's.