I'm about out of ideas.
Maybe run though all the components. The pedal assembly bolts to the tub and a hanger comes from the tub (where the dash bolts on). Then there is a bracket that bolts to the hanger (it is the top part of the "U" shaped bracket). This ties everything together. There is also also a rod that goes from the side of the pedal bracket to the firewall (The rod may be on YJ's sorry not sure). Here's a pic of most of the parts out of the tub. It does not show the 2 column brackets that go around the column, just where they bolt to. Sorry, don't know who to give credit to for the pic, it's not mine.