In the case of Ford Motor Co. (Chicago Stamping Plant) v. National Labor Relations Board, 1978, the Supreme Court ruled in favor of Ford Motor Company against the National Labor Relations Board (NLRB). The dispute arose when a group of employees at Ford's Chicago Stamping Plant were disciplined for refusing to work overtime without prior notice as required by their collective bargaining agreement with United Automobile Workers Union. The NLRB found that this disciplinary action violated Section 8(a)(1) and (3) of the National Labor Relations Act because it was an unfair labor practice aimed at discouraging membership in a labor organization. However, on appeal to the Supreme Court, it was held that since there was no evidence showing anti-union animus or discrimination against union activity by Ford’s management while enforcing its rule requiring advance notice for refusal to work overtime, there had been no violation under Section 8(a)(1) and (3). Therefore, employers have a right to enforce reasonable rules regarding working conditions unless they are specifically intended to undermine union activities.

The dissenting opinion in the case of Ford Motor Co. v. National Labor Relations Board argued that the majority's decision to uphold an order by the NLRB, which required Ford to bargain with a union over its decision to close a plant, was incorrect and set a dangerous precedent for future cases. The dissenters believed that this ruling effectively gave unions too much power over business decisions made by employers, potentially leading to situations where businesses would be forced into making unwise or even disastrous financial choices simply because they were compelled to negotiate with their employees' representatives. They also expressed concern about how this could affect other companies who might face similar circumstances in the future, arguing that it could discourage investment and growth within industries if businesses feared being unable to make necessary changes without facing legal challenges from their workers' unions.