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Best Diff Fluid

  #1  
Old 03-23-2009, 09:44 AM
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Best Diff Fluid

I have to R&R front axle seals. Good time to upgrade fluids. Any recommendations?
 
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Old 03-23-2009, 10:06 AM
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I put mobile 1 syn in both mine.
 
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Old 03-23-2009, 12:49 PM
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What's the proper weight?
 
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Old 03-23-2009, 12:52 PM
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Guzzel's web site is great to bookmark and use for future reference:

Welcome to guzzle's Ford PSD Web Pages
 
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Old 03-23-2009, 01:41 PM
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I used Royal Purple. Don't know if it is the best but it is good.
 
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Old 03-23-2009, 02:45 PM
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Amsoil is what I use
 
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Old 03-23-2009, 03:26 PM
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I believe my manual for 2000 SAYS 75-90 for my front and 75-140 for rear. But like other things(like the ATF) Im sure they change.
 
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