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LSD on an 84 GSL??

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Old 03-20-03, 02:10 PM
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LSD on an 84 GSL??

I was looking around and was wondering if an 84 GSL had LSD or not. I"m just wondering of course. Thanks guys.
Charles
Old 03-20-03, 02:12 PM
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yes charles it does. I told ya that didnt i???

Last edited by knight1976; 03-20-03 at 02:15 PM.
Old 03-20-03, 02:12 PM
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Oh also that rx7 in your driveway is a 1985
Old 03-20-03, 02:17 PM
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My bad,
85 then. Naw jigga, you never told me dat. I had it up on blocks yesterday and turned the wheel. I noticed that the other side was turning the same way and was kinda confused. I was like LSD? Why does this one have LSD when alot of sec gens don"t? grr.
Old 03-20-03, 02:21 PM
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You gotta take me for a drive in it when you get her done.
Old 03-20-03, 02:24 PM
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Heh, everything should be done today. If I can get the slave cyl. off that is. I think I got the tranny and drive shaft in last night in record time. about 30-45 min. My finger still hurts when I move it man. Have you ever driven it? I was wondering how the suspension does in the twisties.
Old 03-20-03, 02:28 PM
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Naw i have never driven it (well i drove it coming off the trailor ) It was blown when i got it so i just got a new motor for it and proceded with the swapping.
Old 03-20-03, 05:18 PM
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ALL GSL came stock with a LSD geared at 3.90
Old 03-20-03, 08:14 PM
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Thanks Sorrow, 3.9 huh? Sounds good to me.
Charles
Old 03-20-03, 08:17 PM
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Is an aftermarket LSD better than the stock LSD, or is there not a difference? By aftermarker LSD I mean like one from mazdatrix. Thanks.

~brian
Old 03-21-03, 09:26 AM
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All GSL and GSL-SE trim cars had LSD from the factory... Sadly, people heard the internal clutches chatter and brought them back... Some were swapped with standard, peg-leg differentials, some were filled with oatmeal or some ****...

Also people have been swapping **** since forever... Some people have put LSD pumpkins on drum brake axles and whatnot. By now, every 1st gen is a mix-match of parts.

The 1st gen LSD's are clutch based, so after a while the clutches wear out...

Thus it is impossible to tell the difference between a open diff and a worn out or broken LSD, except to take it apart... But if it works, then you defenately have the good stuff...

I don't believe there are any aftermarked LSD's for the 1st Gen RX-7... However, you have a Series3 (1984-1985) so you are a good candidate for the Miata Swap...

Miata LSD is found on the Touring or S types and includes a 4.30:1 ring and pinion gears. It is of the TorSen type, so it is gear based and doesn't wear out. It also has better torque transfer peoperties from the slipping wheel to the gripping wheel.

The Miata half shafts have the same splines as the axles in the Series3 RX-7. The drive shaft yoke needs changed, I believe. There is also some other slight modification involving a bracket on the housing, but it should bolt up fairly easily to the axle housing.
Old 03-21-03, 09:36 AM
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Originally posted by brianmcd
Is an aftermarket LSD better than the stock LSD, or is there not a difference? By aftermarker LSD I mean like one from mazdatrix. Thanks.

~brian
Mazdatrix sells OEM Mazda LSD..

A good aftermerket LSD diff is Thorsen..but its expensive.

If that is not good for you ..you just need to get an shorted Ford 9 in or 8.8
Old 03-21-03, 09:44 AM
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pele hit my addition to the thread. if you can find a torsen out of a miata it will be the best bang for your buck. sometimes they will be for sale on some racing boards if there aren't any in the junkyards. the machanical reacts far quicker then a clutch but loses all lsd capability if the wheel has no traction at all, like lifting into the air.
Old 03-21-03, 09:45 AM
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Originally posted by SoRRoW
A good aftermerket LSD diff is Thorsen..but its expensive.
Thorsen is a brand name?

TorSen (Stands for Torque Sensing.) is a type of Differential... Find it on a slammed Miata.
Old 03-21-03, 10:00 AM
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Originally posted by SoRRoW
Mazdatrix sells OEM Mazda LSD..

A good aftermerket LSD diff is (GURU) Thorsen LSD..but its expensive.

If that is not good for you ..you just need to get an shorted Ford 9 in or 8.8
Old 03-21-03, 10:20 AM
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What's the non GSL gearing? My car has had the LSD/disc brake rear swapped for the not so good stuff (if this post constitutes thread hijacking, I appoligize. I thought this was a pertintent question).
Old 03-21-03, 10:25 AM
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3.9 all through the first gens i believe except for the gslse. The gslse i believe got the 4.1.
Old 03-21-03, 11:20 AM
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Actually if you want to get technical I belive its

3.909 Non GSL SE
4.076 GSL SE
Old 03-26-03, 12:39 PM
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Originally posted by peacekeeper
My bad,
85 then. Naw jigga, you never told me dat. I had it up on blocks yesterday and turned the wheel. I noticed that the other side was turning the same way and was kinda confused. I was like LSD? Why does this one have LSD when alot of sec gens don"t? grr.
What does that mean? Don't all RWD cars do that? I had a '72 Duster that would do that. It damn sure didn't have a LSD.

The '85 12A I have does that too. It has drums on the rear which I would assume means the non LSD.
Old 03-26-03, 12:44 PM
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Originally posted by peacekeeper
My bad,
85 then. Naw jigga, you never told me dat. I had it up on blocks yesterday and turned the wheel. I noticed that the other side was turning the same way and was kinda confused. I was like LSD? Why does this one have LSD when alot of sec gens don"t? grr.
What does that mean? Don't all RWD cars do that? I had a '72 Duster that would do that. It damn sure didn't have a LSD.
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