I have a 67 with a C-4 trans and converting to a 4 speed , do I need to replace fromt yoke and alter drive shaft.

 

Sorry Greg!!!

I can't answer the question other that to say that I have had to do both of these things virtually anytime I have changed a tranny to a different style or type...

I have gotten away without changing yokes more often than I have gotten away with not altering the driveline...

 

Im pretty sure the yoke is the same for the toploader and the C4, although I know it is different for the 3 speeds. As far as drive shaft length, Im not sure, but I know of a way to find out... put it in and try it.