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 Differential lube change

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wydtrac

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Join date : 2008-06-06
Location : Maine

PostSubject: Differential lube change   Fri Apr 04, 2014 7:37 pm

Does anyone know of any reason that I should not change the fluid in the differential of my Star Chief?
I read in the shop manual that the reason there is no drain in it is that they don't want you to change the fluid in it. (of course they may not have thought that it would last 55 years) Its pretty black.

Its not a posi so I would assume regular 90 weight gear oil for it. ?

Thanks
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wydtrac

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Posts : 141
Join date : 2008-06-06
Location : Maine

PostSubject: Re: Differential lube change   Mon Apr 07, 2014 8:53 pm

How about you Catbird, any opinion on this one? Wink
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CATBIRD



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PostSubject: Re: Differential lube change   Tue Apr 15, 2014 10:14 pm

wydtrac.....I would venture a guess, that 99% of the rear wheel drive cars of that era, went to their grave with the gear lube installed from the factory still in them. If you're a belt and suspenders person like me, suck the old oil out and put in fresh non-synthetic oil made for differentials in, 90 weight is usually whats used......John
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wydtrac

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PostSubject: Re: Differential lube change   Wed Apr 16, 2014 11:36 am

Thanks catbird. That's pretty much what I figured but feel better with your confirmation.
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