As many know I'm rebuilding a burned at rear axle coach. The power steering lines were burned into there. Question is which hose on power steering box is return line? there are 2. One toward outside is higher than other. I know how they hook up in back with return hooking into bottom of reservoir They are both same size and have a bulkhead splice in last bay so I just need to figure out which is which. Any help will be appreciated. Bob