Torsion Bar (2WD & 4WD)

Removal & Installation

To Remove:

WARNING
The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the rear jack storage area. Failure to do so can result in unexpected inflation or deflation of the air springs or shocks, which can result in shifting of the vehicle during these operations.

1. Safely raise and support the vehicle.
2. Remove the torsion bar cover plate bolts and the plate.

   NOTE: Write down the measurement of the torsion bar adjustment bolt before relieving the torsion bar tension. This measurement will be used as the preset depth for the new torsion bar adjustment bolt during installation.

3. Make preliminary adjustment references and measure the length where shown in the illustration. Write down this measurement.

   Torsion bar

4. Correctly position the torsion bar tool (#T95T-5310-AR) and adapters, then tighten the torsion bar tool until the torsion bar adjuster lifts off the adjustment bolt.

   CAUTION
   The torsion bar adjustment bolt is coated with dry adhesive and must be replaced if it is backed off or removed. Failure to do so can cause the adjustment bolt to become loose when the vehicle is in operation, causing a loss of vehicle alignment.

5. Remove the torsion bar adjustment bolt and nut.
6. Loosen the torsion bar tool (#T95T-5310-AR) until the tension is removed from the torsion bar.
7. Mark the torsion bar and the adjuster for proper installation, remove the torsion bar insulator, and then grasp the torsion bar and pull it free from the front suspension lower arm.

To Install:

1. Position the torsion bar and the torsion bar adjuster.
2. To install the torsion bar adjuster, line up the marks on the torsion bar and the torsion bar adjuster, then install the torsion bar adjuster. Correctly position and install the torsion bar insulator.

   CAUTION
   The torsion bar adjustment bolt is coated with dry adhesive and must be replaced if it is backed off or removed. Failure to do so can cause the adjustment bolt to loosen during operation and cause a loss of vehicle alignment.

3. To preload the torsion bar, do the following:
   • Step 1: Install the torsion bar tool (special tool #T95T-5310-AR) and the adapters.
   • Step 2: Tighten the torsion bar tool (special tool #T95T-5310-AR) until the new adjustment bolt and nut can be installed.
   • Step 3: Turn the adjustment bolt until you reach the length of the old adjustment bolt that you wrote down earlier.
4. Remove the tool.
5. Install the torsion bar cover plate and bolts. Tighten bolts to 35-46 ft-lb (47-63 Nm).

   NOTE: If the vehicle is equipped with air suspension, reactivate the system by turning on the air suspension switch.

6. Lower the vehicle.
7. Adjust the ride height and check the alignment.