A torsion bar is part of the suspension on some vehicles. The torsion bar acts as the main weight-bearing spring in lieu of coil springs. One end of the bar is attached to the chassis, while the other end is fixed to a suspension arm or axle through a lever device. When the vehicle moves up and down (moving over uneven terrain), the motion causes the torsion bar to twist around its own axis. This changes the "spring rate" of the bar, which in turn is determined by its length, diameter and the material it is made of. Over time, the bar may fail from continued stress. Once this happens, you'll have to remove the torsion bar so you can replace it.
Place the jack under the front crossmember of the vehicle and lift up on it.
Place jack stands under the front pinch welds of the vehicle and lower the vehicle onto the jack stands.
Apply a liberal amount of penetrating oil to all of the bolts holding the torsion bar in place.
Locate the mounting socket on the passenger side lower control arm, or A-arm (location and part name may vary depending on your vehicle). Remove the protective cap on the A-arm with a flat-tip screwdriver.
Remove the torsion bar adjusting bolt with the torsion bar tension tool. Turn the adjustment bolt counterclockwise to remove. As tension is removed from the torsion bar, the torsion tensioning tool will continue to apply tension to the bar.
Remove the flat nut on the torsion bar using a socket wrench.
Turn the center bolt on the torsion tension tool counterclockwise to release tension on the torsion bar. The torsion bar assembly should come off at this point.
Locate the mounting socket on the driver's side lower control arm, or A-arm (location and part name may vary depending on your vehicle). Remove the protective cap on the A-arm with a flat-tip screwdriver.
Insert the tip of the drift into the center hole on the crossmember, make contact with the rear of the torsion bar and strike the back of the drift with a hammer to push the torsion bar forward on the crossmember. Pull the torsion bar off the crossmember.
