Had a really hard time finding suitable front bumper selection for my BJ70. I needed one that had suitable winch mount and aux light mounts. After much research and not finding anything without spending solid gold i was able to determine that any TJ/YJ 1987-2006 bunper fits exactly to the outside of the BJ70 frame. So I ordered a 24 inch piece of 2 x 4 inch heavy wall tubing. cut 2 lengths long enough to attach to my frame and allow room for bumper to bolt up. Perfect and easy. Note the angle across the two is extra winch support.