NAVISTAR &lt;NAV> UP ON HIGHER EARNINGS OPINION
  Navistar International Corp's stock
  rose after brokerage house Sanford C. Bernstein and Co raised
  its earnings estimate of the company based on expectations of
  better truck orders and truck tonnage, traders said.
      Navistar led the active list with a gain of 1/4 to 7-1/4 on
  volume of 4.2 mln shares.
      Traders familiar with the opinion said that David
  Eisenberg, director of Sanford C. Bernstein and Co's
  institutional strategy committee, raised his earnings estimates
  to 80 cts a share for the current fiscal year ending in
  October. He expects Navistar to earn 1.20 dlrs a share next
  year. In 1986, the company lost 14 cts a share.
      Eisenberg was unavailable for comment.
  

