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Old 02-06-2022, 11:25 PM
pontiacman63383 pontiacman63383 is offline
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Default Driveshaft length

Ive got a 1969 custom S that im converting from an auto (st300) to a manual (1969 m22). It has a 10 bolt rear end. It looks like the correct length driveshaft should be 56" can anyone confirm that?

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Old 02-07-2022, 05:20 AM
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Kenth Kenth is offline
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This, from 1969 Shop Manual: (no M22 for 1969 Pontiac from factory though)
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Old 02-07-2022, 11:16 AM
pontiacman63383 pontiacman63383 is offline
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Quote:
Originally Posted by Kenth View Post
This, from 1969 Shop Manual: (no M22 for 1969 Pontiac from factory though)
Thats the same info i had found. Thank you for the confirmation. I could find anything in print it was all just people on forums.

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Old 02-07-2022, 10:55 AM
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M22 would use the long length drive shaft but needs the 1” yoke from the TH400. Your existing driveshaft from a ST300 is the right length.

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Old 02-07-2022, 11:18 AM
pontiacman63383 pontiacman63383 is offline
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Quote:
Originally Posted by north View Post
M22 would use the long length drive shaft but needs the 1” yoke from the TH400. Your existing driveshaft from a ST300 is the right length.
I had measured my old one and was hoping that was the case. I figured id have to change the yolk but was really hoping i could resuse the rest of it. Thank you for your help

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