front end binding?

[xratt]

My 1966 LWB truck was already bagged all the way around. I tore apart the front end to rebuild it. New tubular lower control arms, stock upper arms, and all new ball joints. I'm in the middle of putting it all back together, and the front arms will not go as low as they did before. My first guess is the new upper ball joint is binding. Just asking if this is common. It should lay lower with the new lower arms. I have not installed the bags yet, just testing the travel. I tossed the old ball joints so i can not compare them.