Ive found this with a few big bumper 2's. Are the bumpers genuine?
Common for the bumper brackets to snap.
If the bumper bracketss and wing clips are all in good condition then its a case of adjusting the slam pannel and bumper iron.
Ive had spacers and other bits fabbed up just to get mine to sit right
Can take a while to adjust. I find this the worst alignment task.