Author Topic: slip yoke for M21  (Read 2646 times)

DomX77D80

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slip yoke for M21
« on: November 19, 2018, 03:05:35 AM »
ello ,i find original drive shaft (propeller shaft) for my 69 Z/28 M21 but i dont have the slip yoke  :'(,

what is the GM part number ? or  the Length to center of u-joint

Thank you

rare396bronze

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Re: slip yoke for M21
« Reply #1 on: November 20, 2018, 05:00:31 AM »
The original # was 3950364 then was changed to 3967732 and then was changed to 14075214. Hope this helps!

william

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Re: slip yoke for M21
« Reply #2 on: November 20, 2018, 01:11:47 PM »
The driveshaft used for 1969 Camaro w/Muncie 4-speed was 49.56" C-C on the U-joint trunnions. One of the several service part numbers was 3970521.

The production Z/28 driveshaft remains controversial. They are often seen with the trunnions aligned; for other Muncie applications they are offset as usual. The Assembly Manual does not list a part number. It is possible in production, Z/28s used a driveshaft balanced to a higher rpm.

For the record, 67-68 driveshafts are longer and used different trunnions. They don't interchange with '69s.
Learning more and more about less and less...

bcmiller

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Re: slip yoke for M21
« Reply #3 on: November 20, 2018, 02:00:39 PM »
More on driveshafts here.
http://www.camaros.org/driveshaft.shtml

The 69 slip yoke for M21 is not super special.

Bryon / 1968 Camaro SS 396 coupe - now old school 468 big block
1967 Camaro RS/SS 396 coupe L35/M40 - 4 generation family project
Looking for 68 Camaro with body # NOR 181016

Kelley W King

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Re: slip yoke for M21
« Reply #4 on: November 20, 2018, 02:50:44 PM »
I was kind of thinking that other than the 400 turbo they were pretty much the same.
69 Z28 RS Scuncio Hi Performance
69 SS L78
67 SS Chevelle
64 Corvette
66 GTO Tiger Gold
77 Trans Am Special Edition

KurtS

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Re: slip yoke for M21
« Reply #5 on: November 27, 2018, 04:01:41 AM »
It is possible in production, Z/28s used a driveshaft balanced to a higher rpm.
They used the same shaft as any 69 with a manual trans or powerglide. Nothing special....
Kurt S
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