Pump It Down....EASY
Someone should explain to me how a car suddenly will steer straight and true by simply lowering the pump pressure.
The play causing a car to wonder is always somewhere in the wheel alignment, steeringbox, steering joint, balljoints, bearingplay and/or idler-arm bushing.
imo, lowering the pump's oil pressure would even increase play in the steeringbox. Try driving around without the v-belt on the pump and see how much more play there is in the steeringwheel.