"The product innovations continued into the boom years of the 1960s when Kelsey-Hayes was a pioneer in the development of disc brake systems. Kelsey-Hayes disc brake systems beat out the competition and became standard equipment on Lincoln Continentals and Thunderbirds,
and by the time the 1970s rolled around, 85 percent of U.S. cars came with Kelsey-Hayes disc brakes. Kelsey-Hayes replaced Bendix as the number one brake supplier to Ford. Not only had Kelsey-Hayes become a leading brake producer, but there were also Kelsey-Hayes parts in virtually every jet engine."