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Author: Subject: Diff maintenance
paulmw

posted on 25/4/07 at 09:55 AM Reply With Quote
Diff maintenance

I picked up a sierra LSD diff (including drive shafts).

Apart from a good clean and paint do I need to do anything else to it. e.g change the oil etc

Also what do I paint it with?

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zxrlocost

posted on 25/4/07 at 09:58 AM Reply With Quote
hammer ite is fine there is better but cant remember the name

diff oil is designed for life however I emptied mine and put fresh in sure it was hypoid gear oil

try a search

I wouldnt bother doing all this as it cant be seen when its on the car

all it does is make an absolute mess everywhere






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zxrlocost

posted on 25/4/07 at 09:59 AM Reply With Quote
have the Driveshafts got ABS teeth on the end its like a ring of fine teeth

if so these need machining off just down to the bottom of the tooth

they wont fit your rear uprights






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paulmw

posted on 25/4/07 at 10:03 AM Reply With Quote
The guys at MK weren't sure if the teeth needed grining off for the new chassis?
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zxrlocost

posted on 25/4/07 at 10:08 AM Reply With Quote
suprised they dont know they should really !!!!!!!


who did you speak to?






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Mr Whippy

posted on 25/4/07 at 10:19 AM Reply With Quote
quote:
Originally posted by paulmw
The guys at MK weren't sure if the teeth needed grining off for the new chassis?



well you can tell them they do...





Fame is when your old car is plastered all over the internet

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NeilP

posted on 25/4/07 at 06:40 PM Reply With Quote
Make sure that you put LSD oil in not just normal diff oil - LSD plates will chop the oil which will then overheat and you'll knacker something (eventually)





If you pay peanuts...
Mentale, yar? Yar, mentale!
Drive it like you stole it!

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Jubal

posted on 25/4/07 at 06:49 PM Reply With Quote
quote:
Originally posted by NeilP
Make sure that you put LSD oil in not just normal diff oil - LSD plates will chop the oil which will then overheat and you'll knacker something (eventually)


Does that apply to a Sierra diff?

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zxrlocost

posted on 25/4/07 at 06:55 PM Reply With Quote
Hypoid gear oil, viscosity SAE 90 to API GL5

thats what went in mine and never missed a beat from my permanent 12k revs






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zxrlocost

posted on 25/4/07 at 06:55 PM Reply With Quote
Hypoid gear oil, viscosity SAE 90 to API GL5

thats what went in mine and never missed a beat from my permanent 12k revs






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Bluemoon

posted on 26/4/07 at 08:05 AM Reply With Quote
When you take the drain plug out from the diff, if I recall correctly it has a magnetic filter to chatch metal swaf, you will find its full, of bits, clean it with a rag before re-filling the diff..

Dan

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wheezy

posted on 26/4/07 at 03:00 PM Reply With Quote
quote:
Originally posted by NeilP
Make sure that you put LSD oil in not just normal diff oil - LSD plates will chop the oil which will then overheat and you'll knacker something (eventually)


The sierra diff uses a viscous coupling which has its own oil and is a sealed unit within the diff. Ordinary diff oil will be fine.

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