Also of interest. The O/S appears to have decreased:
From 10-K/A today
73,960,446 shares of the registrant’s Common Stock, par value $1 per share, were outstanding on May 31, 2009.
from 10-Q Feb 9th 2009
73,973,797 shares of Common Stock, $1.00 par value, of ArvinMeritor, Inc. were outstanding on December 28, 2008.