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Registered User
Join Date: Jan 2003
Location: Bonny Doon CA
Posts: 355
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LSD for 99 Boxster 5 speed?
OK I'm on search for LSD that will work with 1999 Boxster 5 speed transmission. Any ideas? Any experts with these trannies around? Seems to be real lack of resources for this box. And apparently 99 is different than 97 and 98 5 speed boxes!
Hard for me to believe there is no option for somone with a 99 Boxster to get an LSD in the car. It has been suggested that I convert to 6 speed. That's crazy expensive so I'd really like to find an LSD that works with my 99 5 speed.
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Grant 1999 Boxster Race Car |
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11-13-2009, 10:47 AM
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Automotive Monomaniac
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I'm looking into it for you...
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1986 - 930 Coupe (K27 Turbo, Fabspeed dual muffler) 1998 - 986 Boxster (POC Spec Racer - BSX Class) SpecBoxster.com 2010 - Audi A4 2.0T CVT (Daily driver) 2008 - BMW X5 3.0si (Tow vehicle) Now blogging daily on Autoblog! |
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11-13-2009, 03:05 PM
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Registered User
Join Date: Jan 2007
Location: Phoenix, AZ
Posts: 44
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How about Quaife ?
AUTOTECH - Quaife Torque Biasing Differentials, Close Ratio Gearkits, Racing Transmissions, Custom Driveline Components They list a Boxster 1999, but with extra parts needed. It might be worth a phone call to them... No affiliation of course - just saw your post and remembered someone did this. Take care, Roy T |
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11-13-2009, 03:39 PM
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Registered User
Join Date: Aug 2006
Location: Elay
Posts: 103
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You know you'll find all kinds of info if you do a search on boxsterspec.com LSD was debated ad nauseum. I'm pretty sure Mike Essa from TechTrix in Anaheim installed at least one for testing. I don't remember if he used the Quaife or Kazz (SP?). I don't remember anyone saying the '99 had to get a different unit than the '97 or '98's. John Gordan would know more info since he was big on putting it into the spec, for safety reasons.
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11-13-2009, 08:15 PM
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Automotive Monomaniac
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I asked Michael Essa...
"Gaurd if they want a clutch type or quaife for a less expensive gear type that won't need to be rebuilt ever but will only help with accel wheel spin, not on decell or trail braking like the clutch type." (Sent via mobile.) - Mike
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1986 - 930 Coupe (K27 Turbo, Fabspeed dual muffler) 1998 - 986 Boxster (POC Spec Racer - BSX Class) SpecBoxster.com 2010 - Audi A4 2.0T CVT (Daily driver) 2008 - BMW X5 3.0si (Tow vehicle) Now blogging daily on Autoblog! |
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11-13-2009, 08:28 PM
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gearhead
Join Date: Nov 2007
Location: Ghetto Garage, CO
Posts: 967
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Hello,
That is correct. We do offer a ZF style clutch type LSD for the early 986 chassis Boxsters. Let me know if I can be of assistance. Kind Regards, Matt Monson Guard Transmission LLC
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1974 914 Bumble Bee 1968 911t survivor 2008 Subaru WRX |
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11-14-2009, 08:42 AM
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Registered User
Join Date: Jan 2003
Location: Bonny Doon CA
Posts: 355
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Thanks guys! Matt you have a PM.
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Grant 1999 Boxster Race Car |
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11-14-2009, 07:17 PM
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Registered User
Join Date: Jan 2003
Location: Bonny Doon CA
Posts: 355
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Thanks again Matt! Recieved the new Guard Diff and it has been installed in the tranny with no issues. Its all ready for next year! The Guard differential is top notch quality!
Here is a little video of the car pre Guard. YouTube - Boxster at NorCal UFO AX Think I'm ready to take on those big scary Caymans now. LOL!
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Grant 1999 Boxster Race Car Last edited by Grantsfo; 12-11-2009 at 09:54 PM.. |
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12-11-2009, 09:50 PM
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1986 Porsche 930 3.3 
