the bumper has its own mounts, and it is worlds stronger than ARB.... however ARB is one of the many bumpers I have seen that was all deformed from a side pull... and if you read what ARB says, they advise against the side pull as well... and yes ARB mounts are designed with a crumple zone... these are not... the crumple zone I am referring to is on the frame itself...
EDIT>>> I saw the photos, and it still have the shackle mounts below that are verticle... those horontal ones look like crap and also look they would break off if stressed

