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Join Date: Sep 2001
Location: Mt Sinai , Long Island N.Y.
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What lsd options are available for the g50 tranny

I know quaife has one. Is there any others ? How do they stack up. Intension is for street use with about 400hp/2100lbs

Kurt Williams

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Never drive faster than your gaurdian angel can fly.
82 SC w/965S eng and G50 6:1 hp/w ratio
72 911t 2.6 twin plug and 72' 911t 57k orig 1 own miles
65/66 912 1 owner 76k orig
01' Aston Martin DB7 V12 Vantage Coupe 6spd
Old 02-01-2004, 09:01 PM
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Kurt:

You can use the factory Motorsport LSD or one of the 4340 chromemoly-cased Guard ones.

The latter ones are FAR stonger than the factory units and would be strongly recommended for your application.

Please let me know if I can help.
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Steve Weiner
Rennsport Systems
Portland Oregon
(503) 244-0990
porsche@rennsportsystems.com
www.rennsportsystems.com
Old 02-01-2004, 09:30 PM
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Who sells um and how much do they cost ? Are they readily available ? and do they rate better than a quaife unit ?

Kurt Williams
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Never drive faster than your gaurdian angel can fly.
82 SC w/965S eng and G50 6:1 hp/w ratio
72 911t 2.6 twin plug and 72' 911t 57k orig 1 own miles
65/66 912 1 owner 76k orig
01' Aston Martin DB7 V12 Vantage Coupe 6spd
Old 02-01-2004, 09:35 PM
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One more thing. Are diffs as easy as it looks too install and are special tools needed ? Im a auto tech by trade as far as ability goes.

Kurt Williams
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Never drive faster than your gaurdian angel can fly.
82 SC w/965S eng and G50 6:1 hp/w ratio
72 911t 2.6 twin plug and 72' 911t 57k orig 1 own miles
65/66 912 1 owner 76k orig
01' Aston Martin DB7 V12 Vantage Coupe 6spd
Old 02-01-2004, 09:37 PM
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Hi Kurt:

I have the Guard units in stock and they require a check of the pinion depth and ring gear backlash. Its easy to install but any adjustments require total disassembly of the transmission.

These are FAR better than the Quaife ones as these torque-sensing type LSD's freewheel (open) under trailing throttle and do not provide the gains in handling that the clutch-pack style LSD's do. Its a very big difference,...

If any corrections are required, you'll need a good selection of the factory shims.
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Steve Weiner
Rennsport Systems
Portland Oregon
(503) 244-0990
porsche@rennsportsystems.com
www.rennsportsystems.com
Old 02-01-2004, 11:09 PM
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Call Paul Guard at 1-888-89GEARS. He will let you know what will best suit your application. Super helpful guy too. As Steve said, you will probably want the cromoly one sice you are putting out a fair amount of hp.

Cheers, James

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Old 02-02-2004, 06:39 AM
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