I found the same problem with mine.
There are three of bolts that hold the steering box to the chassis through the engine compartment. Each has a bushing that's welded to the chassis. One of the bushing broke loose allowing for some movement and thus the click. The bolts are accessed through the left wheel well. The bolts will be tight.
You can confirm by have someone look at the box or the bolts in the wheel well while you move the steering wheel. It will move a little.
Hope this helps.
Paul