what happened to my miata?? can anyone help - Miata Forumz - Mazda Miata Chat Forums
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NA (1989-1997) NA Miata discussion within. The MX5's first generation, the NA, sold over 400,000 units from 1989 to 1997.

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Old 07-07-2012, 12:12 PM   #1
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Default what happened to my miata?? can anyone help

-first off it has a welded diff i think broke but idk how to tell.
-with the car running it will still go into gear without using the clutch then it makes a rattling noise (i know its bad for the tranny, i only did that once)
-when its in gear with the car off its like its in neutral

heres wat happened,
I was cruisin with my friend and pulled into this parking to get sideways real quick before i had the chance the bag tire locked up skid to a stop then it was good to roll after that just wouldnt engage into gear.

any ideas what that is or anything to check, anything will help right now. thanks in advance
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Old 07-07-2012, 12:56 PM   #2
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I'm not quite sure if I'm reading your post right, but if I am, you likely broke your diff. The 90-93 Miata's have a notoriously weak differential, and do not like drifting.
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Old 07-07-2012, 08:39 PM   #3
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It really does sound like the rear end went on it.
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Old 07-07-2012, 08:43 PM   #4
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Quote:
Originally Posted by toms96mx5 View Post
It really does sound like the rear end went on it.
i jacked the car up and the driver side rear axel is really sloppy, the passenger is stiff, with the car running and in gear the drive line is spinning but the tires arent.
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Old 07-07-2012, 09:42 PM   #5
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You need a differential. Look for a 1.8 one. more work to install, but rock solid. You might also want to think about changing your suspension geometry as well, the hellaflush thing is murder on the rear components.

But seriously, the 1.6 differential sucks. They are known to grenade from something as simple as a hard launch.
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Old 07-08-2012, 09:43 PM   #6
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the 1.6 diff sucks horribly, mine finally died the other day. lasted 20years and 177,xxx miles. finally went while driving normally. good luck with the torsen hunt.
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Old 07-09-2012, 05:23 PM   #7
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You broke it.
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Old 07-30-2012, 02:08 PM   #8
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Old 07-30-2012, 02:22 PM   #9
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Old 07-30-2012, 02:30 PM   #10
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yep thats the sound it makes right before it gets a dead spot and starts locking rear tires. torsen swap is super easy, drop rear end, driveshaft, pull cv axels, put torsen up in, install cv axles for a torsen rear end, install new driveshaft, change speedo gear, test drive.
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