Most regals will have the holes in the frame for the 2004r crossmember.LOCATE THE HOLES ON YOUR FROM.ONE SIDE IS THE SAME BETWEEN BOTH UNITS,AND ONE MAY HAVE EXTRA HOLES.Now if this is the case you can get a crossmember form any 82 and uo gm mid size originally equipt wiTH A 2004R.yOU CAN FIND 1 ON THE PARTS FOR SALE SECTION ON THIS SITE.