Re U-joint phasing

[zee <zee@domain.elided>]

> I wish I had a piece of paper to show this.  If the joints 
>are set a 0deg. phase the drive shaft will actually act most like 
>a jump rope, all the mass revolves around a center line.  Where 
>if the joints are 90 deg phased, then the shaft acts like it's 
>suspended at it's center and the ends make circles, like two 
>cones connected at their vertices.

I could use some help understanding the driveline phasing. Is it simply
setting the driveshaft up correctly or do I need specialized tools? 
What is the correct setting for the shaft?



Bryan