Steering sloppy, noises in front

2000 Dakota Extended cab SLT, 2wd, 75500 miles, 3.9L. A few months ago I got all four ball joints replaced with an alignment also. I was hearing lots of noises upfront and could feel something clunking with the steering wheel. After I got the ball joints replaced the noises and clunking went away for awhile. I then felt some clicking in the brakes (or thought it was coming from the brakes) and I had a lot of play in the steering wheel. Every time I would hit a bump in the road the truck would want to pull to one side or another. I recently got the rotors and pads replaced up front. They said that everything else looked tight and couldn't find any problems with the steering. I still feel a lot of play in the steering and the truck wants to turn where ever it wants when I hit bumps. When I come to a stop light or something and break the truck wants to pull to the right really hard. I really have to hold on to the steering wheel to keep it from going everywhere. Could there be a problem with the suspension or maybe in the rack and pinion (I don't know much about suspensions or steering problems). I would really appreciate any help because I don't want to pour in money I don't need to. Thanks!