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

fc rear end?

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Old Jan 26, 2010 | 10:24 AM
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AE8616v's Avatar
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fc rear end?

Would it be possible to swap an fc rear end into an sa? found one at a junkyard and im gonna try and take as much as i can from it any ideas?
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Old Jan 26, 2010 | 10:53 AM
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It has been done before. But you'll need some mad fabrication skills to do it. Run a search, there have been a few instructional threads on this...



.
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Old Jan 26, 2010 | 11:00 AM
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AE8616v's Avatar
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awww i thought soo but idk i was hoping it would be simpler im not sure what kind of fc it is cause my friend told me about but if it has a differential would that be possible to put in the sa rear end? i really wanted to get rid of my drums though
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Old Jan 26, 2010 | 11:02 AM
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Yes and no. The 85s were used as a test mule for the FC IRS before it went into production. It's a tremendous amount of work to do the conversion for minimal handling improvements. From someone who has an FC as a DD and a widebody FB for play, I don't think it's worth the effort. For less time and probably less money, an FB can be built to run circles around an FC.

Simplest way to get rid of the drums, even though they can have the same stopping power as the discs, is to install a GSL rear end.
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Old Jan 26, 2010 | 11:42 AM
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That's exactly what I did with my '85 GS. I found a used complete rear end from a GSL, which gave me disc brakes and a Limited Slip rear end. Well worth the trouble of installing, which wasn't much trouble at all.
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Old Jan 26, 2010 | 11:01 PM
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yea i had an fc and really i think my stock sa handles just as good. but since i found that one in the yard i want to use as much of it i can just to make this sa better il probly just look for a gsl rear end when i get to that point you guys have any ideas of parts i could take from the fc that would be easy to install on my sa and make it better? so far im thinking the alternator, fuse box, seats(if there in decent shape)im not sure of the model of the fc but if its a t2 or a vert im gonna take all of the braking system i can. if the rear diff is an lsd unit would i be able to put that in the rear end of the sa?
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Old Jan 27, 2010 | 11:42 AM
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From: https://www2.mazda.com/en/100th/
Originally Posted by AE8616v
yea i had an fc and really i think my stock sa handles just as good. but since i found that one in the yard i want to use as much of it i can just to make this sa better il probly just look for a gsl rear end when i get to that point you guys have any ideas of parts i could take from the fc that would be easy to install on my sa and make it better? so far im thinking the alternator, fuse box, seats(if there in decent shape)im not sure of the model of the fc but if its a t2 or a vert im gonna take all of the braking system i can. if the rear diff is an lsd unit would i be able to put that in the rear end of the sa?
the 83 and earlier cars have smaller axle shafts, so it doesnt work.

for the rear you need this http://mrcmfg.com/catalog/product_in...roducts_id=408
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