NAVISTAR <NAV> STILL EXPECTS HIGHER 1987 NET Navistar International Corp chairman Donald Lennox repeated that benefits from recapitalization are likely to boost future earnings for fiscal 1987. Lennox told the annual meeting that future quarterly and full year earnings from ongoing operations should be "significantly above 1986 results." In his remarks, Lennox said management has no plans to recommend reinstatement of the company's common stock dividend in the foreseeable future. He said the outlook for the medium duty truck market continues to point to little or no change. But recent order receipts indicate a "firmer tone in the heavy duty truck segment," which could result in a five to eight pct increase in industry shipments for the full year, he said. After restructuring under the holding company format, the company's present truck and engine subsidiary will be known as Navistar International Transportation Corp. Neil Springer currently president and chief operating officer of Navistar International was named chairman of the new subsidiary. James Cotting, now vice chairman and chief financial officer, was named to succeed Lennox as chairman and chief executive officer of Navistar International Corp. Lennox will retire March 31. Shareholders at the meeting approved a change in the company's structure to a holding company format, to be effective April 1.