1 Exhibit 23(d) July 12, 1996 Transcisco Industries, Inc. 601 California Street, Suite 1301 San Francisco, CA 94108 Ladies and Gentlemen: We hereby consent to the inclusion of our opinion, which was prepared in connection with the merger (the "Merger") between Transcisco Industries, Inc. and Trinity Y, Inc., a wholly-owned subsidiary of Trinity Industries, Inc., as an exhibit to the registration statement prepared in connection with the Merger. Very truly yours, /s/ Theodore L. Cook ---------------------------------------- Theodore L. Cook