It could be that the torsion bar is totally wiped out, but as dukeboy pointed out it could also be a bunch of other stuff. Stripped torsion bar adjuster, torsion bar socket broken loose from the crossmember, LCA pivot mount torn out of the K member, bent just about anything structural.
It could also be a problem with the rear suspension, if the rear suspension isn't level it will load the front suspension differently from side to side. Time to take a good look at everything and see what's going on.
It would also help to know more about your car and suspension. Is everything stock? Has the front end ever been rebuilt?