Re: Transmission Noise - Diff Preload? - Saab 900 Bulletin Board - Saabnet.com
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Re: Transmission Noise - Diff Preload?
Posted by pjkbrit [Email] (more from pjkbrit) on Tue, 10 Apr 2007 14:52:59
In Reply to: Re: Transmission Noise - Diff Preload?, Muddy, Tue, 10 Apr 2007 14:05:06
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well actually yes...it could just be 5th gear. It's out on it's own located in front of the main cluster gear...5th was literally an add on to the existing 4 speeder and they didn't modify the main case...only the primary case, (cheap). Usually diff noise starts up around 40-50mph and gets louder and more pronounced the faster you go.
Just curious...what oil do you have in there? I'm an ardent fan of gear oil....75/90W EP rated oil...MTL or Amsoil gear oil. Even Mobil 1 synthetic 75/90W gear oil is morethan good. I am NOT OK with engine oil as it has not got the extreme pressure properties needed for helical gear lubrication. I'm old school on this and many here will disagree...but I have nearly 295K on my 85 and 194K on my Subaru Impreza....so I'm doing something right!
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