Let me try to show just how devoid of magnetism the upper part (the operative section) of the wheel really is. I cut a thin (<1mm thick) sliver of steel which is at its widest 1mm and 3mm long. A tiny piece. If you look at the first image below, you'll see the first place on the wheel where that tiny piece of metal can detect any magnetism. Above that there is none at all. Far too low to activate the Hall Effect sensor.
And if you look at the second image you will see the metal retaining ring (the one which has become more/less a little horseshoe magnet) happily holding the same little piece of steel airborne. Literally there is no way this thing could have worked any longer. Hopefully this is all anyone needs to see about these to make up their mind.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
