Ford F-150 - 1997-2003 :: 1999 - Rough / Jiggly Ride Even When Moving Very Slowly

Here is the critical info...1999 F-150 2wd supercab, 4.6 litre, Automatic, 138,000 mi

Recently, I had the upper control arms, upper ball joints, and lower ball joints replaced. They also did an alignment. Since then, the truck has had what seems to be a rough, jiggly ride. I can feel every little imperfection in the road, even when moving very slowly. I've also noticed that my doors sometimes rattle now (they didn't before the work was done). On the highway, sometimes it seems that a tire will get into a bouncing condition which can continue for quit awhile. It is also harder to keep the truck centered in the lane.

I went back to the same place that did the work and told them to double check everything, (which they did, found nothing wrong).

To try to fix this, I have...
replaced the shocks (new ones are bilstein)
balanced the tires
rotated the tires
checked air pressure (32 psi)

I don't know if the following facts have anything to do with anything, but... When I look at the upper control arm attachment points, there is a metal plate that is (I'm told) to keep the camber in the factory setting. This plate was removed on one side to adjust the camber away from the factory setting. Also, I don't see how the castor is controlled? Is there an adjustment for that. Can castor be to blame for any of this? Can cheap parts (control arm, ball joints) be to blame?