Navistar Up 2.7 Percent in Pre-Trade  NEW YORK (Reuters) - Shares of Navistar International Corp.  &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=NAV.N target=/stocks/quickinfo/fullquote"&gt;NAV.N&lt;/A&gt; rose 2.7 percent before the bell on Monday after the  commercial truck maker said it expects higher fourth-quarter  earnings and revenue.