Ford's two-piece lug nut design causes swelling, removal issues

Mechanics are criticizing a design flaw in many modern vehicles' lug nuts, particularly those used by Ford, which can swell and become impossible to remove. This design has led to roadside difficulties. The two-piece lug nuts, with a decorative outer shell, corrode and swell, making standard wrenches unusable and causing delays for drivers. This issue has prompted mechanics to recommend replacing them with solid, one-piece alternatives. This problem has led to class-action lawsuits and widespread complaints, with many drivers needing to replace the lug nuts with aftermarket options. The issue highlights the importance of choosing reliable car parts.