J16
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| posted on 25/5/11 at 08:27 PM |
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Diff help needed
Hi all
I'm trying to identify what ratio diff I have in my kit so I can configure my digidash. I've been through the diff codes thread at the top
of this forum but can't seem to find the matching code as well as a lengthy google search, tbh I just keep getting conflicting info.
Unfortunately the tag on the diff is corroded and no longer any use so all I have are the numbers stamped into the back of the diff which read as
follows:
83BG-4033-BA- D 04 BA
If anyone can make any sense of this please let me know. All I know is that it's a LSD.
Cheers
Jk
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austin man
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| posted on 25/5/11 at 08:41 PM |
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doesnt it work in relation to the wheel circumfrence
Life is like a bowl of fruit, funny how all the weird looking ones are left alone
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HowardB
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| posted on 25/5/11 at 08:43 PM |
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quote:
Originally posted by J16
Hi all
I'm trying to identify what ratio diff I have in my kit so I can configure my digidash. I've been through the diff codes thread at the top
of this forum but can't seem to find the matching code as well as a lengthy google search, tbh I just keep getting conflicting info.
Unfortunately the tag on the diff is corroded and no longer any use so all I have are the numbers stamped into the back of the diff which read as
follows:
83BG-4033-BA- D 04 BA
If anyone can make any sense of this please let me know. All I know is that it's a LSD.
Cheers
Jk
can you do a mechanical test, and count the number of input turns to output?
Howard
Fisher Fury was 2000 Zetec - now a 1600 (it Lives again and goes zoom)
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madteg
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| posted on 25/5/11 at 08:44 PM |
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What diff is if. You can always remove back plate and it will say it on the crown wheel.
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snapper
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| posted on 25/5/11 at 09:13 PM |
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3.6 or 3.9
Jack up rear (use axle stands) chalk mark on inside of tyre, chalk mark on prop flange, rotate wheel 1 turn, count prop rotations, should be 3 1/2 for
3.6, 4 for 3.9.
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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matt_gsxr
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| posted on 25/5/11 at 10:18 PM |
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quote:
Originally posted by snapper
3.6 or 3.9
Jack up rear (use axle stands) chalk mark on inside of tyre, chalk mark on prop flange, rotate wheel 1 turn, count prop rotations, should be 3 1/2 for
3.6, 4 for 3.9.
If both wheels rotate once then the quoted text is completely true.
If you only rotate one wheel (and the other doesn't rotate) then you will need to rotate the single wheel twice to get these numbers.
This a very easy test to do.
Or if it is easier then take the back plate off and count the teeth on the big gear and the one that meshes with it and divide.
Matt
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mcerd1
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| posted on 25/5/11 at 11:30 PM |
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quote:
Originally posted by matt_gsxr
If both wheels rotate once then the quoted text is completely true.
which they should if its a working LSD 
or like madteg says if you take the back cover off its normally stamped / written on the crown wheel
like this:
[Edited on 25/5/2011 by mcerd1]
-
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J16
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| posted on 1/6/11 at 09:40 AM |
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Many thanks for all the replies. I've worked out that the diff has a ratio of 3.9 if anyone else finds this info of any use.
Cheers
Jk
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