Is this a symptom of worn out torsion bars?

Use this method to make sure ride height is the same on the passenger side and driver side.

Measure from the ball joint to the floor, measure from the torsion bar anchor housing to the floor, subtract first measurement from second, the value should be 2" +or- 1/8". The height should not vary more than 1/8" side to side. Adjust by cranking on the torsion bar adjusters (up or down). Just make sure you have a LOOOOONG breaker bar as the adjustment bolts are a pain to turn.

A little over kill but make sure the seats are adjusted fully back wards and the tank is topped off good.