Took my 76 F-100 out for the first test drive after ground up rebuild. The truck was lowered 3 inches using DJM drop beams. Rebuilt power steering box and rebuilt power steering pump were installed using new high pressure and return line. The steering "power steering" is 10 times harder than the manual steering on my 60s vintage muscle car. It almost seems like something may be bound up. Thinking maybe the steering box need to be adjusted, but after reading a number of posts, don't want to mess with this without know exactly what I am doing. Any thoughts?