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Old 05-12-2007, 04:19 PM   #1
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Default What are my LSD options?

I have a 1.8l 96 miata and I just found out that I have an open diff. What are my options? Torsens are pretty pricy. Is it that hard to put a non turbo rx-7 diff in. Or should I just live with it?
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Old 05-14-2007, 04:33 PM   #2
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On more research It seems that it may be more trouble than it's worth to switch to an rx7 diff but it sounds more reasonable to just to add the torsen. Is the torsen upgrade worth the $$ and time?
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Old 05-14-2007, 05:31 PM   #3
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You can also get cusco or kaaz or mazdaspeed or maruha clutch type diffs, all will give better performance than torsen
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Old 05-14-2007, 05:34 PM   #4
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hmm.... do the KAAZ or others just go right in.. and can we use stock pumpkin?
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Old 05-14-2007, 06:28 PM   #5
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KAAZ and so should drop right in afaik
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Old 05-14-2007, 06:35 PM   #6
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RX7 lsd is easy as pie, and cheap to 200 bucks.
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Old 05-14-2007, 06:37 PM   #7
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check out http://www.solomiata.com for lots of info on this.
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Old 05-14-2007, 07:00 PM   #8
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lol so easy to make a joke. Maybe to easy
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Old 05-14-2007, 07:02 PM   #9
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Quote:
Originally Posted by PaKMaN View Post
hmm.... do the KAAZ or others just go right in.. and can we use stock pumpkin?
yes and yes
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Old 05-14-2007, 07:14 PM   #10
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I'm going to do this RX7 Rear end soon
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Old 05-14-2007, 09:46 PM   #11
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How much more work is it to do the rx7 swap over just adding a torsen?
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Old 05-15-2007, 10:45 AM   #12
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it is the same amount of work dude swap the frigin LSD reset the backlash done, torsen is the same.
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Old 05-25-2007, 02:53 PM   #13
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OK. I went with a 88 RX7 LSD. Is it better to have some one else set the backlash or buy the micrometer and dial indicator and do it my self. Where do I get it set at? How much? I'm just wondering if it's cheaper to buy the stuff of have someone else do it.
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Old 05-25-2007, 02:54 PM   #14
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you can do it yourself, probably better off that way, just learn how to do it right....

you'd have to take it to a transmission shop otherwise, and they might charge $80-150.
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Old 05-25-2007, 04:11 PM   #15
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Do you have a lead for a cheap 7-8" micrometer & dial indicator w/ magnetic base?
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Old 05-25-2007, 05:07 PM   #16
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jegs summit etc. they are pretty expensive though. Alot of racers set it up by eye and feel, Gl with that method though it is not for the faint of heart. FWIW i got charged 60$ for some one who knows what they are doing check out my specs etc. well worth it to me, as peice of mind etc.
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Old 05-25-2007, 05:38 PM   #17
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micrometer is the hard part.
you can also get some outside spring dividers/calipers for $15-20 at mcmaster and then transfer the measurement to a ruler or vernier calipers.
item 2060A62 for example.

mcmaster for the dial indy.
20715A44 for a set with dial and mag base. $29
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Old 05-25-2007, 05:52 PM   #18
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what is the going rate for an rx7 lsd diff?
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Old 05-25-2007, 06:13 PM   #19
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just the lsd $175-225
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Old 05-30-2007, 03:44 PM   #20
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Just got the diff in today. Looks good. Should I rebuild it? Where do I get the stuff to do it or where do I take it? It only has 90,000 miles on it. Also what are the gear ratio on an 88 rx7 lsd?
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