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Old 02-09-2012, 10:38 AM   #1
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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
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Last edited by spitfiredeez954; 02-09-2012 at 11:35 AM. Reason: addition of zip code
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Old 02-09-2012, 10:57 AM   #2
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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, 11:35 AM   #3
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33021 area
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Old 02-09-2012, 11:59 AM   #4
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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, 02:36 PM   #5
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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, 04:17 PM   #6
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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, 07:57 AM   #7
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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, 10:47 AM   #8
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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, 08:45 AM   #9
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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.

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