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Discussion Starter #1
I just grabbed a *free* tranny that I thought was a long TH400 , but it has a 27 spline output shaft. There are no 375 id stampings on the tail, but it has to be a 375A , right? Is this trans worth keeping around. Can it be converted to a 400 by changing just the output shaft and housing? Is it as durable internally? THANKS
 

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Discussion Starter #3
It's definitely a Chev trans. I was just wondering if it is as strong internally as a 400.
 

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The majority of internal components are the same but there are less clutch plates compared to a true TH400.
Plus the output shaft is a smaller diameter.
 
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