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'81 tranny swap

Chuck, are you envisioning a same-gen 4 speed like they had in 1980 or are you looking to do something late model, like a 5 or 6-speed?

The various websites that sell 'compatible' transmissions typically have write ups regarding the complications when doing a retrofit.
 
Thinking of swapping out my TH350 auto trans for a manual. Any thoughts, suggestions, guidance?

Since the 4 speed was optional for 81, you can purchase the assembly instruction manual (AIM) and do a factory installation if you want to go that way.

:)
 

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