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I did a conversion from automatic to manual and I'm weighing my options regarding the driveshaft. The 4-speed shaft is a little bit longer. I have 3 options. I can have my existing automatic shaft lengthened, buy a new shaft, or buy a used one. So I'm posting this with the hope that I can find a used one for a reasonable price, or at least get some input on resources where I can get one. I'm in the Metro Detroit area.

Susan
 

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did you go to a muncie 4 speed ? pre 1970 ?
do you still have the original 8.2 10 bolt ?

if you used a saginaw or a t-10 it could effect the length or even a 12 bolt ... effect driveshaft length
 

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I have a 1965 M-20 with an original 8.2 10 bolt yes. Good points thank you! Either would throw the measurement off for sure!
 
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