69-70 B-body..... yes , non rallye dash only, It was there help prevent (possible) twisting of the pedal / steering column support cage with manual trans. cars. Strange thing too, the pedal / steering column support cage was the same if you had the standard dash or the rallye dash..... so someone at mopar thought that only the standard dash's twisted?? If you have a rallye dash remove that brace or you'll never get that dash in. Don't worry your dash will not twist or buckle...... unless that area is completely rusted out.
Later, BUZZ
