The JB Weld worked out real well, the plastic and magnet are one. /forums/images/graemlins/grin.gif
Another question for you all, I put some plastic wrap on the bottom of teh magnet to prevent the cab top from being scratched by the metal to metal contact. Any suggestions for a plastic coating for the magnet that will wear better then thin plastic wrap, but will let the magnet hold the strobe in place?