John, Older models were threaded into tilt linkage, so to remove them you would turn counter clockwise to remove lever. If like the F150 with plastic tilt lever, lever is just a push/wedge fit on a tapered rectangle, remove screws under the steering column to remove trim and slide lever off taper shaft.
Check the attached link,instruction and guide, Good luck.
I hope this helped you out, if so let me know by pressing the helpful button.
http://www.justanswer.com/ford/29v3g-replace-tilt-steering-lever-ford-f150-2004.html