Hi ScrapIron, If it's helpful for you here is some photos of my DynaTrac ball joints installed. I installed these in 2016 in my 2005 era DynaTrac ProRoc 60 front axle. Note that only the lower ball joint has a zerk fitting that hangs down. I sheared off my zerk fittings off of my original ball joints, so clearly I don't wheel as aggressively as I used to since these are still there.
If it's not clear in the photo I rotated the U joint to the most close to the ball joint position. There is approximately a 1/4" of clearance between the rotating u joint ears and the ball joint housing or nut, depending on upper or lower.
I forget I have these installed which is why I like them. Not saying you should use DynaTrac just sharing the info in a photo for you.
- Eric
Full View
Upper Closer Up
Lower Close Up