C4/FMX Driveshaft

[knn]

Does anyone know if the driveshaft is the same for a C4 and and FMX behind a 351c (H-code)?

Thanks

 

[Vicus]

I don't think so. Length of the drive shaft might be the same but you need a different version of the slip yoke.

Output shaft C4 needs slip yoke with 28 splines.

Output shaft FMX needs slip yoke with 31 splines.

Cheers Frank

 

[knn]

I don't think so. Length of the drive shaft might be the same but you need a different version of the slip yoke.

Output shaft C4 needs slip yoke with 28 splines.

Output shaft FMX needs slip yoke with 31 splines.

Cheers Frank

Thanks!

I think I have both yokes.

Can anyone measure their FMX driveshaft length?

Thank you

 

[Hemikiller]

This should help out....

MUSTANG DRIVE SHAFTS, U-JOINTS, SLIP YOKE.pdf

 

[knn]

OMG!  Thanks @Hemikiller!

This was perfect!

 

[basstrix]

This should help out....

MUSTANG DRIVE SHAFTS, U-JOINTS, SLIP YOKE.pdf

This is an awesome reference, thanks for posting. What is the source of this? I'm also working on a couple of 71 Rancheros and could use this sort of info to help put some parts on the radar that I would like to find.