My mom's 1982 Corvette has a transmission with 9YA054N stamped on it which seems to be the typical model for this car.  It seems to be having some issues and I have a 1FUM067C that is available to put in if its doable.  I believe that it came out of a 1991 Firebird.  I would have to change out the tail section but other than that, will the swap work or are there too many internal differences?

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Change the tailhousing, and speedo gears.....everything else will work fine. You'll also be putting in a better trans, with a larger input shaft, and better pump. I assume you have the torque converter for the '91 trans too, because the one for the '82 will NOT work. 

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Joel Adams
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I do have the torque converter form the 91 but not really sure how good of shape that its in.  This may be the time to just get a new one and not take any chances.

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