Kosmo
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| posted on 3/3/07 at 08:57 PM |
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Sierra LSD Diff Oil ?
I'm about to clean up my diff and install new seals and get it all ready before my chassis arrives .... I was thinking of changing the diff oil,
is this recomended and if so what type should I use or should I leave it alone ?
The diff is a 7" 4x4 lsd type (3:62)
Cheers,
Kosmo. 
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miegru
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| posted on 3/3/07 at 09:17 PM |
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When I filled mine I talked to BGH gearboxes and they reccomended to use the standard ford oil.
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graememk
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| posted on 3/3/07 at 09:18 PM |
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the lsd is sealed so use normal oil.
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Kosmo
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| posted on 3/3/07 at 09:53 PM |
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quote:
Originally posted by graememk
the lsd is sealed so use normal oil.
What do you mean normal oil....?
Thanks
Kosmo.
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the_fbi
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| posted on 3/3/07 at 10:52 PM |
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quote:
Originally posted by Kosmo
quote:
Originally posted by graememk
the lsd is sealed so use normal oil.
What do you mean normal oil....?
Thanks
Kosmo.
Normal diff oil.
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Chippy
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| posted on 3/3/07 at 11:53 PM |
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It is "I think" EP 90, if not its EP 80. Think either would do, and as the diff is probably worn a bit I would go for the EP90. HTH Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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blueshift
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| posted on 4/3/07 at 11:15 AM |
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I have the haynes manual, it specifies one kind of oil for both open and LSD:
"Hypoid gear oil, viscosity SAE 90 to API GL5 (Duckhams Hypoid 90S)"
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Kosmo
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| posted on 4/3/07 at 06:01 PM |
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Cheers guys... thats the info I need 
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Dave Bailey
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| posted on 4/3/07 at 09:44 PM |
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Ford still sell it and it's not expensive! Can't remember what it was though!
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blakep82
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| posted on 5/3/07 at 09:14 PM |
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I've got a BMW with LSD, and i wouldn't put standard diff oil in it... always LSD oil. usually about £10 per litre. you can get it from
rally design easy enough
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the_fbi
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| posted on 5/3/07 at 09:18 PM |
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quote:
Originally posted by blakep82
I've got a BMW with LSD, and i wouldn't put standard diff oil in it... always LSD oil. usually about £10 per litre. you can get it from
rally design easy enough
But your BMW has a totally different type of LSD so it needs LSD oil
The Sierra diffs are sealed and contain their own LSD oil which isn't replaced/changed. Just normal diff oil needed for the CWP.
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