UUUMMM litraly the only thing i can think of is that the ARB has been put back in pissed up. im not going to explain why as it wont make any sence if youv never had the beam apart.
check the beam mounts is my only other suggestion
Or maybe lesser spec shocks been fitted at some point, check part no's
check the beam mounts is my only other suggestion
Or maybe lesser spec shocks been fitted at some point, check part no's