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post #1 of 9 (permalink) Old 07-19-2019, 11:36 AM Thread Starter
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Transmissions question

I couldn't quickly find the answer although I'm sure it's here somewhere.

I've got an 83 Spider.

Does a tranny from a 78 work in the 83 or are they completely different? I'm guessing they're not the same.

Lemme know!
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post #2 of 9 (permalink) Old 07-20-2019, 06:53 AM
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They are the same. But putting in a trans that hasn`t been rebuilt is a mistake as in general there are two issues that need to be fixed. 1- the first gear syncro design. See the "Sticky" in the trans area. 2- 2nd gear syncros are the most problemsome and should be replaced.
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post #3 of 9 (permalink) Old 07-20-2019, 08:20 AM Thread Starter
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I wouldn't put the transmission in without doing those things first. Reverse is another common issue.
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post #4 of 9 (permalink) Old 07-20-2019, 06:14 PM
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...and after you rebuild the 78' you will have to use the 83' bellhousing.

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post #5 of 9 (permalink) Old 07-20-2019, 06:32 PM
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ARwrench beat me to it. 1978 did not have the sensors on the bell housing
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post #6 of 9 (permalink) Old 07-21-2019, 03:16 PM
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I think one of the trannys need a belhousing that has holes cut into it for the shift forks to pass thru
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post #7 of 9 (permalink) Old 07-21-2019, 06:47 PM Thread Starter
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Thanks everyone. My bellhousing is fine to use. A lot of the parts in that 78 gear box, can possibly be used...plus other NEW parts. I've got doubts about my reverse gear, for example, and I am told those are really hard to find. For $100 i cannot go wrong if even a few parts in there are good.
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post #8 of 9 (permalink) Old 07-21-2019, 09:29 PM
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If the trans in your car doesn't pop out of reverse. Then is fine. Just reuse the 3 gears and the fork.

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post #9 of 9 (permalink) Old 07-21-2019, 11:07 PM Thread Starter
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It does pop out of R sometimes
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