The United Auto Workers union and Ford Motor Co. (F.N) have averted a strike at a factory in Kansas City, Mo. that builds the company’s best-selling F-150 pickup trucks, the union said in a Facebook post late on Friday. Settles said last week the Union local in Kansas City, representing about 7,000 workers, had been unable to resolve differences over seniority, staffing and safety issues. Ford has made about $1.1 billion investments in the Kansas City facility to expand production of pickups and commercial vans.