06 TJ SE 2.4L 6spd, 79 CJ5 258ci 4spd, 83 CJ7 258ci auto
If thats the bumper, my concern would be the width vs the width of a YJ, otherwise a welder will most likely be needed for the modification ou'll need to do, probably more work than it's worth, best if you can fine a 4x4 shop with some choices in stock, so you can measure etc to get an idea how much work is actually involved. Maybe a YJ owner will chime in with one of these or offer some advice on a good substitute. Good luck!!