im am in the proses of installing a new power steering gear box on my truck, it all in and the lines are hooked up but i cant bleed the system. im thinking that i may have gotten the lines backwards. i have it hooked up so that the pressure line in the left port (looking at the truck from the front) and the return line is hooked up the the right port (fraime side of the gearbox) is this right or did i get it backwards