BaltACD
What would be affected by overloading would be the wheel bearings, not the wheels. Cars with heavier load limits have larger axle sizes and bearing areas than do cars with lower load limits.
If the end with the load/empty sensor is overloaded, wouldn't it have the chance to slide the wheels on the less loaded side under heavy braking?
zug - who doesn't have a mechanical hat on.
I have shopped a car or 2 for imbalanced load, and picked up a few more the detectors nabbed. They get put on the RIP tracks for the customer to deal with (usually via contractor).