They sometimes are a failure point if they are not maintained properly. They supposedly put additional stress on the bearings. They are roughly the same price as getting steel wheels with the correct backspacing.What is wrong with wheel spacers?
I've seen a few reports of it...don't remember exact number but it was under 5 cases. But "properly installed" can always be broken down with speculation...like using a torque wrench that isn't calibrated. Or overtorquing bolts, or getting defective studs (which the spacer manufacturer won't know till they fail).Has anyone ever had properly installed spacers fail?