Plus, generally, the hub and wheel bearing assemblies have a tone ring built in for wheel speed sensors. Not that anyone is going to try and retrofit ABS, but the idea of a built in tone ring was part of what got me going down the road of a fabricated spindle.
I just want it so I can send wheel speed signals to and ABS module so the PCM get's what it needs and can do cruise control. But maybe ABS and traction control could be an option later? :)