(Äk'sÄn-trÄ­s'Ä­-tÄ) 1  A measure of the deviation of an elliptical path, especially an orbit, from a perfect circle. It is equal to the ratio of the distance between the foci of the ellipse to the length of the major axis of the ellipse (the distance between the two points farthest apart on the ellipse).
An apparently common problem with GM Tilt Steering columns is that they become loose from four bolts backing out deep in the tilt assembly. A good shop will be experienced in taking care of for about $100. With the correct tools and a bit of patience you can fix it yourself. You Will Need.
Loose Tilt Column Rebuild Instructions (1969-1999) PDF Download. This 51 step, 19 page set of instructions is broken into 4 sets. It takes you step-by-step through the process of repairing a loose tilt steering column on a GM Saginaw style column.