Chuck,
For more information try the crawler section of this forum and also try <!-- w --><a class="postlink" href="http://www.cletrac.org">www.cletrac.org</a><!-- w -->. For parts Zimmerman Oliver-Cletrac at <!-- w --><a class="postlink" href="http://www.olivercletrac.com">www.olivercletrac.com</a><!-- w --> is the place.
Geoffrey