1989 Chevy Silverado the steering column has a 2 piece metal shell just behind the steering wheel.?

It has tilt steering and and wobbles left and right. I know there is a bracket with 4 studs sticking through it that is either broken or the nuts are loose. But the metal shell which I am sure is a theft deterrent prevents the removal of the lock cylinder. The shell has a piece on top and bottom that is about 3 1/2 inches long 1/2" wide and 1/2" high. These 2 pieces seem to hold the shell together. Do you know how to remove the shell and will I be able to reuse the shell if it is removed?