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Old 02-20-2017, 01:29 PM   #1
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no mechanical lsd for 986 ever. there was an electronic version that used PSM and ABS but a bit of a misnomer.
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Old 02-20-2017, 02:59 PM   #2
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Not ever. Wow.

I guess the occasional posts on LSD are regarding aftermarket units.
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Old 02-20-2017, 03:04 PM   #3
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available here

http://986forum.com/forums/general-discussions/64022-anyone-need-new-lsd.html
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Old 02-20-2017, 03:12 PM   #4
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no mechanical lsd for 986 ever. there was an electronic version that used PSM and ABS but a bit of a misnomer.
http://986forum.com/forums/general-discussions/62890-what-transaxle-do-i-have.html
Post number #2 ?
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Old 02-20-2017, 03:23 PM   #5
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vs post #9 or #19?
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Old 02-20-2017, 03:30 PM   #6
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I love my Guard torque biasing diff.
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Old 02-21-2017, 10:53 AM   #7
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I love my Guard torque biasing diff.
I love my OS Giken LSD

Specially because it also locks the differential during hard braking.
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Old 02-22-2017, 06:28 PM   #8
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I love my Guard torque biasing diff.
I like mine too.
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Old 02-20-2017, 03:42 PM   #9
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vs post #9 or #19?
some 5 speeds got LSD according to my G8601-002 trans code.

Not a real 986 as its not an S I guess
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Old 02-21-2017, 09:35 AM   #10
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some 5 speeds got LSD according to my G8601-002 trans code.
Agree. Very, very rare.

G8600-001 = 5 speed gearbox for 1997 - 1999
G8601-001 = 5 speed gearbox for 2000 - 2004
-001 is non-limited slip differential (LSD)
-002 is for the LSD
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Old 02-21-2017, 11:38 AM   #11
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Agree. Very, very rare.

G8600-001 = 5 speed gearbox for 1997 - 1999
G8601-001 = 5 speed gearbox for 2000 - 2004
-001 is non-limited slip differential (LSD)
-002 is for the LSD
have you seen others? i can't help but think that the existence of a numbering system for something is not proof that something exists. the -001 and -002 are probably a porsche standard that they apply to all transmissions, regardless of whether the option is actually available. willh has the only -002 i've ever heard of, and he notes that it doesn't behave like an lsd, so perhaps an error in numbering? otherwise it would be worth it's weight in gold to a spec racer, yes (anything OEM is allowed)?
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Old 02-21-2017, 01:17 PM   #12
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have you seen others? i can't help but think that the existence of a numbering system for something is not proof that something exists. the -001 and -002 are probably a porsche standard that they apply to all transmissions, regardless of whether the option is actually available. willh has the only -002 i've ever heard of, and he notes that it doesn't behave like an lsd, so perhaps an error in numbering? otherwise it would be worth it's weight in gold to a spec racer, yes (anything OEM is allowed)?
I have not personally ever seen a -002 myself, just heard on rare occasions people speak of them or claims to that effect. It could very well be a "bigfoot" phenomena (everyone has heard of one but no one has ever produced a body!).

Currently, the Spec Boxster rules only specify the G86/00 transmission and there is no mention of the LSD option. Elsewhere in the rules it states that the only changes allowed are those explicitly mentioned in the rules (if its not in the rules, its presumably illegal). Thus, I am sure a Spec Boxster running a stock LSD would be quickly protested.
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