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Thread: Lsd

  1. #1

    Lsd

    I'm in the UK and wondered if anyone over in San Francisco could score me some....................

    Actually, I would like some advice about fitting a differential (either Limited slip or torque biasing). I've heard that the originals are hard to source. I have also heard some negative feedback about Quaife who are the default diff over here.

    There are a few ads in Excellence. Any opinions ?

    Any help would be gratefully received

    Cheers

    Mike
    To ask is to seek denial

  2. #2
    Hi Mike,

    I have had both the factory and Quaife diffs and I found the Quaife to be more reliable. I never did the swap myself so I don't know for sure if there are any issues, but I was told they were a direct swap.

    Hope this helps,

    Marc

  3. #3
    Longhoods forever! silverc4s's Avatar
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    Hello there Mike!
    I am sure someone will chime in with the details, but I have recently read that the type of L S Diff needed depends on the application.
    More specifically, autocross vs track racing have differing requirements in this area. One type "free wheels" under braking, and the other doesn't apparently.
    So, this is the main consideration for your decision, I think...

    Cheers!
    Bill Conway, Early S Registry member #254
    1970 S, 2.2L Silvermetallic Coupe
    1973 T, 3.2L Black Carrera Targa
    1969 T, 2.4L Silvermetallic Targa

  4. #4
    Goldmember ttweed's Avatar
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    Re: Lsd

    Originally posted by Mike Burdon
    There are a few ads in Excellence. Any opinions ?
    Paul Guard of Guard Transmissions makes pieces that put the Quaife to shame as far as quality of materials and construction. He makes both Torsen type and clutch type LSDs for Porsches. Shipping would be a killer to the UK, though, they are HEAVY bits...

    TT
    Tom Tweed
    Early S Registry #257
    R Gruppe #232
    Rennlist Founding Member #990416-1164
    PCA National DE Instructor
    Read my surf novel!

  5. #5
    Thanks for all that. Is there a website for Guard ?

    Cheers

    Mike
    To ask is to seek denial

  6. #6
    Goldmember ttweed's Avatar
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    Originally posted by Mike Burdon
    Is there a website for Guard?
    Not that I know of. You can email Paul at gears@gte.net or contact him by phone at the numbers in the Excellence ad.

    TT
    Tom Tweed
    Early S Registry #257
    R Gruppe #232
    Rennlist Founding Member #990416-1164
    PCA National DE Instructor
    Read my surf novel!

  7. #7
    I'd like to find a source for some "short" gearsets preferably factory stuff. I'm not too keen on aftermarket stuff only because I was told to avoid it.

    Tom
    "Be who you are and say what you feel because those who mind don't matter and those who matter don't mind." - Dr. Seuss
    "Experience is the mother of wisdom" - idiom
    "Let them that don't want none, have memories of not gettin' any"- Brother Dave Gardner

    Early S Registry #235
    rgruppe #111

  8. #8
    Tom,

    I am curious, why were you advised to avoid aftermarket gears? Was it any manufacturer in particular?

    Regards

    Hayden
    Technical Director
    Windrush Evolutions Inc.

  9. #9
    I have no personal information or experience; it's could be just a wives tale but a good friend, racer, and engine builder doesn't like them. If somebody can prove otherwise I'll buy what's the best regardless of where it came from.

    Tom
    "Be who you are and say what you feel because those who mind don't matter and those who matter don't mind." - Dr. Seuss
    "Experience is the mother of wisdom" - idiom
    "Let them that don't want none, have memories of not gettin' any"- Brother Dave Gardner

    Early S Registry #235
    rgruppe #111

  10. #10
    Moderator Chuck Miller's Avatar
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    If I may put a little different spin on this thread and ask for.......

    A recomondation on a SoCal rebuilder for my factory ZF LSD

    Thanks,
    Chuck Miller
    Creative Advisor/Message Board Moderator - Early 911S Registry #109
    R Gruppe #88

    TYP901 #62
    '73S cpe #1099 - Matched # 2.7/9.5 RS spec rebuild
    '67 Malibu 327 spt cpe - Period 350 Rebuild

    98 Chevy S-10 Utility
    15 GTI Commuter

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