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Thread: Limited Slip for a 1970 911

  1. 09-19-2006, 02:56 PM #1
    nickR
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    Limited Slip for a 1970 911

    My 1970E does not come with limited slip but having previously owned a 73S which did I really miss that opiton especially in cornering, which is where we really appreciate these cars. What are my options for installing one? Is it possible to source a factory LSD for a 1970 model? What about after market? Any ideas on cost plus labour? Suggestions appreciated.

    Nick
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  2. 09-19-2006, 03:05 PM #2
    72targa
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    http://www.quaifeamerica.com
    http://www.quaifeamerica.com/differe.../diff_apps.htm
    Peter Kane

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  3. 09-19-2006, 03:10 PM #3
    pu911rsr
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    The ZF factory LS are very difficult to come by but there are modern alternatives Quaife, GT etc.
    Phil
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  4. 09-19-2006, 03:39 PM #4
    nickR
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    Peter, Phil,

    Thanks. I'll check out the Quaife website. Had a feeling it wouldn't be cheap.

    Nick
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  5. 09-20-2006, 07:17 AM #5
    cosley
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    The Quaife isn't the same as a LSD. I believe the Quaife works like an open diff when your not on the gas, i.e. lifting through a corner, where as a LSD drives both wheels all the time.
    Harold #334
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  6. 09-20-2006, 07:33 AM #6
    Eric911S
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    Hello: If it was me and you are going to drive the car on the street and track buy a Torque bias differencial. Either the Quaife or GT. They don't wear out and are the same all the time. With a clutch type diff it does change with heat and wear. Also how do you want it set up 40%, 80%. With the Quaife it is the same all the time. You will have to learn to drive the Quaife a little differently to keep it locked up. If you lift it will unlock but back on the power and it locks up again. I like the lightened GT diff and installed one in a 914-4 2.4 liter car. It works great. For a full race car it is a toss up which one I like. If a long race I like the Quaife for short races disc type differencial. Hope this helps. Thanks Eric
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  7. 09-20-2006, 08:21 AM #7
    72targa
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    What's the web address for GT?
    Peter Kane

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  8. 09-20-2006, 10:00 AM #8
    72targa
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    This may still be available...

    http://www.ddk-online.com/phpBB2/viewtopic.php?t=11382
    Peter Kane

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  9. 09-20-2006, 10:10 AM #9
    PJenkins
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    Give a call to Carquip as well. On occasion they have one or two around. If they don't they may know where to find one. As I bought one from them a little over a year ago...they are not cheap!
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  10. 09-20-2006, 10:22 AM #10
    Eric911S
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    Hello; For the GT stuff phone Paul Guard at Gaurd Transmission 888-894-3277. Hope this helps. Thanks Eric
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