KB wrote on Thu, 18 December 2014 15:43

...So, while both Flaming River and Borgeson u-joints will fit on a DD shaft from either manufacturer, you (apparently) can not mix and match the joints.
I.E., you need either two Borgeson joints, or two Flaming River joints for the phasing to be correct. ...

I don't remember if I posted this in the original thread, but phasing is irrelevant in the steering mechanism. That tiny fraction of a rotation when one speeds up and the other slows down won't even be noticeable by a human turning a wheel.

On a drive shaft it will vibrate like h3!! and ruin the bearings on each end. But on the steering shaft, nada.