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97 1.8 open diff support broken

Old 02-09-2012, 09:38 AM
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Default 97 1.8 open diff support broken

Just recently broke my rear end. Looking into diff replacements locally at junkyards. I've found 2 convertible fc's 88 and 89. Called a dealership with the vin numbers and had them look on their computers to tell me which diff the cars have installed. Both open diffs.

Question is, can I use the pumpkin from either of them on my 97 na 1.8??
I'm looking to get my car running right now, I can always hunt for the fc's internals another time.
I don't know if the rx-7's were turbo'd before, no engines in their bay.

33021 area
Attached Thumbnails 97 1.8 open diff  support broken-part_1328643974150.jpeg  

Last edited by spitfiredeez954; 02-09-2012 at 10:35 AM. Reason: addition of zip code
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Old 02-09-2012, 09:57 AM
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If you post your location, someone near you may be able to help with a rear.
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Old 02-09-2012, 10:35 AM
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33021 area
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Old 02-09-2012, 10:59 AM
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Originally Posted by spitfiredeez954 View Post
I've found 2 convertible fc's 88 and 89.

so just buy the aluminum part and replace yours...
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Old 02-09-2012, 01:36 PM
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What were you doin to cause it to break like that?

Should think about doin the bushings while its apart too.
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Old 02-09-2012, 03:17 PM
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The differential I bought years ago from a wrecker was broken like that and they just welded it up. 8 years later and it's still fine.
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Old 02-10-2012, 06:57 AM
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Stealership wants $900 for a new one, so that's out of the picture.

I called around and no one would dare weld it, fear of being responsible if it breaks and I die.

the 88 convertible rx7's open diff pumpkin measures to be the same as my na 1.8's open diff.

____will it hold my internals though?
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Old 02-10-2012, 09:47 AM
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your pumpkin will bolt onto the rx7 aluminum half. You'll just have to replace the bushings with miata ones.

Just replace what's broken and get on with your life for $50.
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Old 02-11-2012, 07:45 AM
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Originally Posted by Braineack View Post
your pumpkin will bolt onto the rx7 aluminum half. You'll just have to replace the bushings with miata ones.

Just replace what's broken and get on with your life for $50.

don't you mean my ring and pinion half will bolt onto the housing?
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