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Thread: 5 speed raito q

  1. #1
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    Default 5 speed raito q

    Hey is it possible to change any of the gear ratios in the 5 speed manual trans

  2. #2
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    No... Not possible but you could source a close ratio 5 speed from an E28 M535i or 635CSI (both use the Dogleg getrag box with 5th gear being 1:1 not overdrive.)
    BMW parts professional

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    E34 535i M

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    RX7 S-I 13b bridge port
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  3. #3
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    and you will have an entertaing few take offs......
    Gone but not forgotten

  4. #4
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    Quote Originally Posted by Paul in NZ
    and you will have an entertaing few take offs......
    Huh?
    BMW parts professional

    Previous rides:
    BMW
    E12 M535i (go the dogleg!)
    E28 M535i (MMM M88!)
    E34 535i M

    MAZDA:
    RX7 S-IV T04 (440 hp ATW)
    RX7 S-I 13b bridge port
    RX4 13b peripheral port

  5. #5
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    HA I already have 1:1 in 5th I want to have overdrive. I have a 4.10 and in 5th gear at 80 its at 4500rpm...

  6. #6
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    Quote Originally Posted by pyro
    HA I already have 1:1 in 5th I want to have overdrive. I have a 4.10 and in 5th gear at 80 its at 4500rpm...
    Change your diff. Didn't somebody say that a 3.64 (maybe Jeff) is good ratio for a 5-spd?
    -ashley


    '92 525iA / 179k miles / Born 3.92 / ABS / No ASC / stock / North Carolina



    Paper Gaskets Suck!

  7. #7
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    Eastern Tennessee USi
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    its perfect in my 530, auto trans with overdrive though.
    Quote Originally Posted by acyre
    Change your diff. Didn't somebody say that a 3.64 (maybe Jeff) is good ratio for a 5-spd?
    -ashley
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  8. #8
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    no i had a 3.23 before and I put in the 4.10 lsd

  9. #9
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    Even with a 4.1 diff 5th gear is still an overdrive ratio on the stock 5 speed unless it's a dogleg box.

    I believe the E127 E28 M535's run a 3.9 lsd with a 'real' 1:1 5th gear.

    Why would you run a 4:10 diff on the street anyhow? what a waste of time........and fuel!

    i bet you never use first gear......

    I used to run 4:44 lockers in my mazda's but they were used for track/rally work and the Rotors have no problem sitting over 7500 rpm for extended periods.
    My track 13b peripheral port would regularly see 9500 rpm shift points and pull to 9000 rpm by the end of the straight at Wanneroo raceway.

    Imho anything over 3.9 is a waste of time for a daily driven car.....

    Sort your diff out and don't worry about the 'box.
    BMW parts professional

    Previous rides:
    BMW
    E12 M535i (go the dogleg!)
    E28 M535i (MMM M88!)
    E34 535i M

    MAZDA:
    RX7 S-IV T04 (440 hp ATW)
    RX7 S-I 13b bridge port
    RX4 13b peripheral port

  10. #10
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    The bigest part of it was to get the lsd... If I could find a 3.9 lsd than thats what I would do. Can i have the gears changed now that i have lsd to 3.91?


    EDIT:
    I emaild the guys at diffsonline so I'll see what they say.
    Last edited by pyro; 08-15-2006 at 12:59 PM.

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