You get two pipes that go onto the body which feeds the fluid to the bar, ive never seen it leak there generally the o ring on the pipes are ok unless they have been removed and disturbed, its more likely to be the bar where it leaves the body, crawl underneath and look at the ns of the arc unit where it exits the body and it will be leaking there. Its a 3 hour job if you know what your doing and you need to split the body from the chassis to remove and fit it.