1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

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Old 03-14-07, 08:36 PM
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Best option?

I have heard that instead of finding a gsl rearend with limited slip I can use the Miata's limited slip from 96-99 or something? Has anyone done this successfully? Also, there is an N/A FC up the street that has been sitting for years, would that car have a rearend I could use?
Old 03-14-07, 09:25 PM
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Use the search function and only type in the word miata. There are alot of threads in there.
Old 03-14-07, 09:28 PM
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the whole FC rear end, as in suspension/axle/etc will not fit without major modification.
Old 03-15-07, 01:56 PM
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What about just the limited slip assembly in the FC pumpkin? I do not have to have the whole rearend with disc brakes and everything, I just want LSD.
Old 03-15-07, 02:45 PM
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***What about just the limited slip assembly in the FC pumpkin?***

IF the Miata pumpkin fit in your FC rearend why would you want to use the weak a$$ gears that the Miata has? Please go to Spec Miata.com & search for the issues they have with the weak a$$ gears.
Old 03-15-07, 03:49 PM
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Originally Posted by zephyr07
What about just the limited slip assembly in the FC pumpkin? I do not have to have the whole rearend with disc brakes and everything, I just want LSD.
Our ring gears are 6", the FC NAs are 7", TIIs are 8"
Old 03-15-07, 03:51 PM
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i thought our ring gears were 7" too. so are miata and na fc's. the tii are 8" and so are fd's. interchangable ones are 1st gens, n/a fc's, and miata. wats wrong with the miata gear? its a 4.33 i believe.
Old 03-17-07, 01:40 PM
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So what would you guys recommend? It sounds like trying to find a GSl rear is the easiest solution, but finding one in good shape should be a challenge.
Old 03-18-07, 05:20 PM
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*** Please go to Spec Miata.com & search for the issues they have with the weak a$$ gears. ***
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