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Whining diff. what causes it? 

 

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 Post subject: Re: Whining diff. what causes it?
Posted: Sun Dec 30, 2012 11:23 pm 
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This is the lsd fluid i have, never used it. it was given to me,

Image

If this is no good ill get something better, what would be a good oil to put in the diff?
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 Post subject: Re: Whining diff. what causes it?
Posted: Sun Dec 30, 2012 11:26 pm 
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That stuff is perfect for the job.

 

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 Post subject: Re: Whining diff. what causes it?
Posted: Sun Dec 30, 2012 11:35 pm 
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How much would I need ? this isnt a full bottle
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 Post subject: Re: Whining diff. what causes it?
Posted: Sun Dec 30, 2012 11:49 pm 
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1.7L if i remember correctly. let me check netlube and ill get back to you.

 

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 Post subject: Re: Whining diff. what causes it?
Posted: Sun Dec 30, 2012 11:51 pm 
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well, Nulon Netlube recommends Full Synthetic 80w140......

1.6 Litres to be exact, but I swear i can remember seeing in the owners manual of my NC that the LSD takes LS90.


EDIT: After checking Fuchs, Penrite, Castrol and Nulon, they all recommend 80w140.

So I might have given you a bum steer when i said its good lol.
(maybe 6 and 8 are different.)

 

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Last edited by alfy on Sun Dec 30, 2012 11:54 pm, edited 1 time in total.

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 Post subject: Re: Whining diff. what causes it?
Posted: Sun Dec 30, 2012 11:53 pm 
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thanks heaps everyone. And Alfy thanks for the info on the fluid, I hope I can still get this stuff somewhere
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 Post subject: Re: Whining diff. what causes it?
Posted: Mon Dec 31, 2012 2:54 am 
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That's the exact same stuff I used, it seemed to work a treat. Make sure you have a bit extra in case you spill some or whatever. Apart from that it should be a pretty straightforward job, hopefully it cures the diff noise. :)

 

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 Post subject: Re: Whining diff. what causes it?
Posted: Mon Dec 31, 2012 7:49 am 
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If it makes the noise only when turning, it's the LSD clutches or cones. Often this noise can be fixed by a good diff fluid. Nulon is probably fine. I have always used Redline Synthetic, and it's magic. The local Ford dealership uses this for any noisy LSDs, and it fixes it 90% of the time without opening the case.
http://www.redlineoil.com/product.aspx?pid=37&pcid=4
http://www.redlineoil.com.au/reseller-locations.asp

If the diff makes the noise in a straight line, it will be the ring and pinion gears not meshing properly - possibly due to a worn/loose pinion bearing. No fluid will fix this problem, though a good one may reduce the noise enough.

 

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 Post subject: Re: Whining diff. what causes it?
Posted: Tue Jan 01, 2013 2:25 pm 
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well i ended up getting some different fluid for the diff, can i do the diff with the rear end on ramps or does it need to be on stands?
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 Post subject: Re: Whining diff. what causes it?
Posted: Tue Jan 01, 2013 2:56 pm 
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Id do both, get the rear up on ramps then jack up the front and put it on stands, to try keep the car as level as possible.

 

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 Post subject: Re: Whining diff. what causes it?
Posted: Tue Jan 01, 2013 7:18 pm 
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Does anyone have a picture of the Tag that Im meant to look for?

There is a tag on it, but I dont see LSD or anything on it.

the tag on it just says 3.27:1 and has a serial number on it as well
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 Post subject: Re: Whining diff. what causes it?
Posted: Tue Jan 01, 2013 8:44 pm 
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Just went out and spun the right hand side wheel clockwise and the left hand side spins in the opposite direction
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 Post subject: Re: Whining diff. what causes it?
Posted: Tue Jan 01, 2013 8:58 pm 
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Motivat-ed wrote:
Just went out and spun the right hand side wheel clockwise and the left hand side spins in the opposite direction


That either means you have a conventional diff or very shagged LSD.

Image

The tag on my LSD.

 

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 Post subject: Re: Whining diff. what causes it?
Posted: Tue Jan 01, 2013 9:09 pm 
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evxr6 wrote:
Motivat-ed wrote:
Just went out and spun the right hand side wheel clockwise and the left hand side spins in the opposite direction


That either means you have a conventional diff or very shagged LSD.

Image

The tag on my LSD.


There is only the little Tag, not that big one
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 Post subject: Re: Whining diff. what causes it?
Posted: Tue Jan 01, 2013 9:14 pm 
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it should have a lsd being a ghia, just out of curiosity go to ford etis.com and put your vin no in and it will tell what your car is and what options it had and wether or not it had lsd when new..
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