2000 Ford Expedition Shakes when Braking

I just changed my brake and rotors, thinking that the shaking and wiggling would stop, but it did not. Someone told me that it could be the wheel hubs, but I preformed the test where you shake the tire to check for sloppyness, but I could not tell.The only thing that I felt is that the drivers side felt a little loose, but the passenger seemed tighter. PLEASE HELP