During an overhaul of my engine bay I put in a re-manufactured power steering gear box to replace the loose and leaky original. When I started it up and ran new fluid through the system I noticed that my wheels locked all the way to the left. Turned the steering wheel side to side and it steers very rapidly back to the left. Does the same with the wheels in the air or on the ground on gravel.

I don't want my shake down trip with the new engine to end in me driving into an oncoming semi.

Is there an adjustment somewhere I don't know about to correct this? It doesn't pull hard, like it is fighting me, but it would sure steer me into a hard left if I let go of the steering wheel for a second.

If there is an adjustment, pictures would be awesome!