I have figured out why most, if not all specialty ball joints are recommended only for racing use. The preload on the ball joint must be set by the user and it requires relatively frequent readjustment. The frequent readjustment would not be likely to occur on most cars that are real drivers. Standard ball joints only require an occasional greasing and get tossed when they wear out. There is no adjustment required or possible on these ball joints.

It looks like the AFCO 20034 that was suggested may be a good choice.