Drive shaft problem

[Mesopic]

Hi
The drive shaft my 69 road runner came with (out of an auto i believe) is different from my Manuel transmission. The drive shaft has a master spline while the transmission does not. Anyone able to shed some light on why this is? Also if possible anyone know where i can find the part to adapt the driveshaft to fit? Thank you

 

[A383Wing]

I have never seen a master spline on a Mopar drive shaft.

 

[Meep-Meep]

Seems I do recall seeing a master spline on something recently and it was probably a MoPar. I'm not sure why this is necessary but it appears that the drive shaft should fit no problem.

 

[Jasoncoronet]

My 68 coronet also has a master spline 727 auto. Maybe try cleaning that slip its pretty rusty looking even wihout a master spline it does not to me that shaft will slip on anything. I dont know if that would help the master spline deal.

 

[Supershafts]

Almost every slip yoke made has a dbl spl, it is the way the machine is set up

 

[Mesopic]

Thank all, i have cleaned it and found that it fits without any problem.