Premature wheel bearing failures.

Do you guys remember back in the 80's when Chrysler front wheel drive cars where eating wheel bearings for lunch, they figured out that it was a bad ground and the current was running through the axles the bearings the struts to the body! they added a ground strap and that fixed all the problems. I would say check all your grounds engine body chassis look at the bearings and see if any are black (burnt)