Blackula

ok my steering has about a half of turn in play. i move it back and forth and the wheel doesnt turn. so i tried to adjust the steering box. nothing happened. i replaced all of my steering components, tie rods, control arms, bushings and everything. nothing happened. so then i went and bought a new steering box and installed it. not as much play, but my steering wheels still toggles back and forth about 2 inches each way. so i adjusted the new box, and nothing happened. is there supposed to be play in the steering wheel on these cars???? please help me out. any help with this would be appreciated.