If you have the time to do it your self I used this article to do mine, the slop is usually due to the three srews in the column that come loose over time. Hope this helps. I loc tite'd mine so I pretty much never have to worry about it again :lol:
wade
http://www.superchevy.com/tech/sucp_0707_tilt_steering_column/index.html
wade
http://www.superchevy.com/tech/sucp_0707_tilt_steering_column/index.html