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Flushed differential..now gear whine?

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Flushed differential..now gear whine?

Old 02-22-2009, 11:09 PM
  #11  
vanquish
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+1 I was thinking the exact same thing. The preload has a very specific torque rating.
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Old 02-22-2009, 11:37 PM
  #12  
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I agree with the above. definitely sounds like your problem.

RP does make an 85w140. kinda rare but we stock it at the shop I work at.
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Old 02-23-2009, 09:57 AM
  #13  
99BlackPonyGT
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Originally Posted by bigmackloud View Post
I agree with the above. definitely sounds like your problem.

RP does make an 85w140. kinda rare but we stock it at the shop I work at.
but no 80w140, that ive seen atleast
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Old 02-24-2009, 06:10 PM
  #14  
98GTstang
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thanks for the help guys, im going to back off the pinion nut and see if that helps at all.
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Old 02-24-2009, 06:57 PM
  #15  
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Haynes manual calls for "80w-90 GL-5 gear lubricant and adding 4 oz. of friction modifier when oil is changed"
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Old 02-24-2009, 07:19 PM
  #16  
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Originally Posted by 98GTstang View Post
thanks for the help guys, im going to back off the pinion nut and see if that helps at all.
I think you need a new crush sleeve. Once you tighten it to set preload that crush sleeve is deformed according to the amount of torque placed on it. If you back the pinion nut off the crush sleeve is already crushed too far and may not fix your problem.
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Old 02-24-2009, 07:22 PM
  #17  
livefast1
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DO NOT BACK OFF THE PINION NUT. like already said you've over crushed the crush sleeve and backin off the nut will cause major slop in the bearings and will almost definitly ruin your ring and pinion.
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Old 01-30-2019, 11:17 PM
  #18  
lenko
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removed

Last edited by lenko; 02-04-2019 at 07:11 PM. Reason: old post
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Old 01-31-2019, 06:24 AM
  #19  
08'MustangDude
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I noticed I got a little bit of a whine when drained and filled my stock Diff...
Wasn't there before, but it is now, and I used the right synthetic gear oil.

It's an open diff, so I don't need the friction modifier.
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Old 02-04-2019, 06:31 PM
  #20  
WJL
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Post is from 10 years ago just saying
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