> They're usually sealed pretty good. You may have another problem causing   
    > them to blow out.   
      
    > With that kind of mileage, you're probably experiencing blow-by or a   
    > plugged up crankcase venting system, causing the intake gasket to leak.   
      
   Are you referring to the PCV value?  I have replaced that before, but never   
   the elbow part.  I have had a heck of a time finding the PCV elbow.   
      
    > Front or rear bearings?   
      
   Always the front.  Normally, it is the ABS speed sensor that goes first.  I   
   get the good old ABS idiot light.  I have a tool that can tell me which sensor   
   is bad in the ABS system.  So far, I have not made it more than (2) years with   
   the same front bearing.  That is why I gave up on the cheap China bearings and   
   went with Timkin.  They have a good reputation.   
      
    > 3.1 engine?   
      
   It is a V-6 3.4.   
      
    > I ran Dexcool in my 98 Camrao (aluminum block and heads) up until last   
    > year with no problems what-so-ever. Upon advice from my friend Harry, who   
    > is the service manager at Benson Chevrolet in San Antonio, I switched it   
    > to a generic coolant (green).   
      
   Most mechanics recommend ditching the Dexcool.  Makes me wonder why they still   
   make it, unless they changed something in it recently.     
      
    > Cleaning up an oily mess isn't much fun either.   
      
   You got that right.     
      
   - Mark   
      
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