ok, it all started on my 01 platinum f250 with the failure to return to center, i disconnected the rod end off the pitman arm and with the engine off, the wheel got tight only at the center from both directions. changes the gear box with a rebuilt from oriellys. then tough to turn stock tires at a stand still, revved engine, and freed up, change pumped and bleed with new fluid. now hard to steer short time after, found bad rod ends.....changed ball joints and all steering components with XRF units. (universals where in fine condition) so that is everything in the system and at a stand still, i still cant turn the stock tires!!! i have gone out and while turning the wheel raced the engine and no joy, didn't help. i give up. could i have gotten a junk pump? i give up, now i have an expensive alignment to pay for, WTF!