The Teamsters had previously lent $1.5 million to Roy Fruehauf to finance a proxy fight against his elder brother, Harvey, and Roy Fruehauf was alleged to have returned the favor by making the loan to Beck. As the Teamsters represented some Fruehauf employees, the loan was alleged to be an illegal gift or bribe, in violation of the Labor-Management Relations Act of 1947. The U.S. Supreme Court upheld the indictment in 1961, but the case was subsequently dismissed. Following the death of August's sons, Harvey, Harry and Roy Fruehauf, the Fruehauf family was no longer in charge by the mid-1960s. Resting on the laurels of the preceding decades, management would not make the tough and difficult personal sacrifices needed to withstand economic challenges. While the company eventually diversified and expanded its operations, financial issues resulted in the sell-off of company divisions in 1989. The truck trailer unit continued operation as Fruehauf Trailer Corporation. In the 1970s and 1980s, Fruehauf became a major manufacturer of aluminum or steel marine Intermodal containers for Container ships, both in the US as well as through various overseas subsidiaries such as Fruehauf France or Nippon Fruehauf, with major global shipping lines and container leasing companies as customers. The company declared bankruptcy on October 7, 1996. An axle plant in Ohio was sold to Holland Hitch Company on February 18, 1997, and Fruehauf's United States manufacturing and sales business was sold to Wabash National on March 17, 1997. Prior to the bankruptcy, the Bellinger Shipyard owned by Fruehauf in Jacksonville, Florida, was sold to M. D. Moody & Sons, Inc. for $1.9 million in 1995 and then the Jacksonville Shipyard was sold to developers in 2014. Companies in France, Mexico, New Zealand and Japan continued to operate under the Fruehauf name. In 2015, Poland's largest trailer company, Wielton, purchased a 65% share of Fruehauf France; it completed the purchase of the balance in 2017.