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Old 08-04-2004, 03:38 AM   #1
Chris
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Default E30 Differential Ratios

U.S. E30s:

318i/is

1984-1985 - 3.64 (84 open for Auto)
1991 - 4.10 (Manual)



318ic

1991-1992 - 4.27 (Manual w/ LSD option)


325

1988 - 2.93


325e/es

1984 - 1985 - 2.79 w/ LSD option
1986 - 1987 - 2.93 (es = LSD)


325i/is/ic

1987 - 1988 - 3.73 (is = LSD)
1988 - 3.73 (Automatic; iS = LSD)
1989 - 1993 - 3.73 (Manual; is = LSD)
1989 - 1992 - 4.10 (Automatic; is = LSD)


325iX

1988 - 3.91
1989 - 1991 - 3.91 (Manual)
1989 - 1991 - 4.10 (Automatic)



M3

1988 - 1991 - 4.10
1988 - 1991 - 4.45 (rare)


325i Touring

3.91 (LSD = option)



If you see any erroneous information, please correct me.

Also, as you can see there is missing information, so feel free to add what you know.
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Old 08-04-2004, 04:30 AM   #2
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There is no 326iX, but you already know that.

/Mattias
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Old 08-04-2004, 04:36 AM   #3
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Old 08-04-2004, 05:31 AM   #4
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I have a 86 325 with 2.93:1.
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Old 08-04-2004, 12:27 PM   #5
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89-t0-92 had a 410 diff on automatics??? Can it be true..
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Old 08-04-2004, 01:24 PM   #6
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Quote:
Originally Posted by DonkeyPunch
I have a 86 325 with 2.93:1.
Added.
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Old 08-04-2004, 03:50 PM   #7
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1989 - 1992 - 4.10 (Automatic; is = LSD)
Is this true..
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Old 08-04-2004, 04:43 PM   #8
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Quote:
Originally Posted by TriFlow
1989 - 1992 - 4.10 (Automatic; is = LSD)
Is this true..
As far as I know, yes.
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Old 08-05-2004, 11:10 PM   #9
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Quote:
Originally Posted by Chris
Quote:
Originally Posted by TriFlow
1989 - 1992 - 4.10 (Automatic; is = LSD)
Is this true..
As far as I know, yes.
Man I going to find an auto parts car... Theres tons of running auto's around here for cheap..
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Old 08-16-2004, 04:21 PM   #10
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aren't the iX rear diffs limited-slip as well?
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