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Thread: 323i diff ratios

  1. #1
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    323i diff ratios

    My diff whines a bit so I pulled it and opened it up today. My diff didn't have the metal tag with the ratio stamped on it, so I counted the teeth on the gears. 43 on the ring, 11 on the pinion = 3.91. Did any 323i ever come with a 3.91 open diff?

  2. #2
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    not to my knowledge. I think they all shipped with 3.45.
    Last edited by jrcook320; 11-27-2010 at 10:24 PM.

    '81 320i turbo | t25, 931 CIS, 250hp, 13.92@100mph | 2.2L m10 Turbo Build | My E21 Videos |

  3. #3
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    It could be from a 320is

  4. #4
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    Quote Originally Posted by jrcook320 View Post
    not to my knowledge. I think they all shipped with 3.45.
    That's what I thought. It was probably swapped at some point.

    Quote Originally Posted by bmac320i View Post
    It could be from a 320is
    Didn't the 320is come with a limited slip?

  5. #5
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    Correct, all 323i's were 3:45.

  6. #6
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    Quote Originally Posted by joey79 View Post
    That's what I thought. It was probably swapped at some point.


    Didn't the 320is come with a limited slip?
    I believe all the 320iS cars came with a 3.91 LSD and 5-speed manual transmission.

  7. #7
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    I have a small case 3.45 e36 lsd in my garage. I wonder if I can swap internals.

  8. #8
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    Quote Originally Posted by Mike323i View Post
    Correct, all 323i's were 3:45.

    Hi Mike323i,
    I couldn't help but notice what a nice collection of vehicles you have. Is that Baur listed in the Baur Registry?
    http://translate.google.com/translat...baur-tc1.de%2F
    What number is it?

    I am curious to find how many Baurs there are in the US. I have one here in CT, I know of at least one in NY, you are in New Jersey, a couple in Philly, a Dietel Baur in VA, three or so in Atlanta area, there was one in Beaufort, SC for sale recently .... several that I am aware of on the West Coast... and of course a very famous one in Alaska (Hi Jeff) .... I am not aware of another Baur in CT (there was one in Mystic, but it was sold to the Philly area this year) ... or even another in New England, ---- and there may be a few--- but I just don't have the info.

    It has been estimated that there are 25 in US... although there are probably more. Jeroen (Netherlands) estimates that there are 10% of the original production of 4595 Baurs left in existence. Very hard to figure how many of those were brought to the US, and how many remain on the road, after at least 27 years, minimum.
    Also very hard to do a trace, since, as gray market cars, many 323i are registered simply as 320i's, and many Baurs may or may not be registered as convertibles.

    So I am interested in any info you may have. Thanks.

    I don't mean to hijack this thread, so if any info is forthcoming I will move it to a new thread.
    Last edited by tomscat1; 11-28-2010 at 10:13 PM.
    Tom
    SE Connecticut
    1982 323i Baur, 1977 320i (carbed),
    1978 320i (parts)
    1991 325ix 5 speed, 1989 325ix (winter),
    1989 325ic (summer)
    1973 2002 Malaga (with frosting)
    1975 Mercedes W115 300D (The Departed)
    the late 1979 323i Euro (project, Now Departed)

    Visit my blog: Baurspotting
    http://baurspotting.blogspot.com/

    BWR PWR!

  9. #9
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    Quote Originally Posted by joey79 View Post
    I have a small case 3.45 e36 lsd in my garage. I wonder if I can swap internals.
    I got the e36 lsd internals into the e21 case, with some modification to the case. Pics to come.

    For reference:

    http://forums.bimmerforums.com/forum....php?t=1565138
    Last edited by joey79; 11-29-2010 at 03:46 AM. Reason: Automerged Doublepost

  10. #10
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    Quote Originally Posted by tomscat1 View Post
    Hi Mike323i,
    I couldn't help but notice what a nice collection of vehicles you have. Is that Baur listed in the Baur Registry?
    http://translate.google.com/translat...baur-tc1.de%2F
    What number is it?

    I am curious to find how many Baurs there are in the US. I have one here in CT, I know of at least one in NY, you are in New Jersey, a couple in Philly, a Dietel Baur in VA, three or so in Atlanta area, there was one in Beaufort, SC for sale recently .... several that I am aware of on the West Coast... and of course a very famous one in Alaska (Hi Jeff) .... I am not aware of another Baur in CT (there was one in Mystic, but it was sold to the Philly area this year) ... or even another in New England, ---- and there may be a few--- but I just don't have the info.

    It has been estimated that there are 25 in US... although there are probably more. Jeroen (Netherlands) estimates that there are 10% of the original production of 4595 Baurs left in existence. Very hard to figure how many of those were brought to the US, and how many remain on the road, after at least 27 years, minimum.
    Also very hard to do a trace, since, as gray market cars, many 323i are registered simply as 320i's, and many Baurs may or may not be registered as convertibles.

    So I am interested in any info you may have. Thanks.

    I don't mean to hijack this thread, so if any info is forthcoming I will move it to a new thread.
    I have two here in Texas. I think you should start a new thread. I always thought it would be good to have a spreadsheet with e21s and at least the last 6 digits of the VIN. This way we could track vehicles and give history of vehicles to new owners if the car was already on the spreadsheet.

  11. #11
    Join Date
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    Just updated my excell-sheet: 401 TC1. And these are the cars I know to be in the US (that's the only way to find out how many there are: to count them ):
    70296 318
    70332 318
    70471 323i ("Dietel")
    70534 320/6
    70558 316
    70868 323i
    70917 320/6
    71475 318A
    71572 316
    72175 323i
    72419 318i
    72565 323i (ex Michael Baur, wrecked)
    72569 320/6
    72679 323i
    72857 323i
    72910 323i
    73023 323i
    73037 323i
    73056 323i
    73091 323i
    73475 323i
    73583 323i
    73860 323i
    73940 323i
    74154 323i
    74210 323i
    74389 323iA
    74403 323i
    74587 320i (US-model!)

    So that are 29 cars.

    Gr Jeroen

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