I am so sick and tired of screwing with my power steering system. It has been a problem for over a year. After replacing the pump,box and all of the lines I got the steering pretty good. Recently installed hydrobooster. Came from boneyard with all hoses, everything seemed in good shape. Now the high pressure line from the pump vibrates and chatters all the time. It rattles the steering column too. It is noisy than chit inside the cab. It sounds like air, I bled it thouroughly and have driven for over a week and still same problem. At idle the pressure sucks and I have done all of the hi-po mods to the pump, it will barely turn my 35 swampers. I have to be at least 1200-1500 RPM for the steering to work good. I just tore out the steering cooler and filter because with it hooked in line it was causing the brake pedal to depress by it self and make the brakes drag????WTF?? The only non stock hose is the booster to box which I had to use 2 compression fittings to join two hoses, O-ring type that came with the booster to the old hose to the inverted flare style box. Return line is 3/8 hydraulic hose with a brass T joining them together. Please help, this problem is driving me crazy!! /forums/images/graemlins/angryfire.gif OH one other thing. While I had it up on jack stands with front tires off I noticed the steering wheel is extremely hard to turn with the engine off. I mean both hands as hard as you can turn to move the wheel, this doesn't seem normal.