Front Coil Spring Replacement

Removal Procedure
For control arms and components, refer to Control Arms and Components (2WD).

Tools Required
- J 23028-01 Coil Spring Remover and Installer





1. Raise the vehicle on a hoist so that the control arms hang free.
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Single Front or Rear Wheels) in Wheels, Tires and Alignment.
3. Remove the shock absorber. Refer to Shock Absorber Replacement (RWD-All Except C3500HD).
4. Cradle the lower control arm. Use the J 23028-01, secured to the end of a suitable jack.
5. Remove the stabilizer shaft from the lower control arm. Refer to Stabilizer Shaft Replacement (All Except C3500HD).
5.1. Raise the jack in order to relieve tension on the lower control arm pivot bolts.
5.2. Secure the spring with a chain through the spring and the control arm.
6. Remove the pivot bolts and nuts.
6.1. Take the rear pivot bolt out first.
6.2. Lower the control arm by lowering the jack.
6.3. When compression is removed from the coil spring, take the chain away.
7. Remove the coil spring and the insulator.
8. Position the coil spring properly for easy removal.

Installation Procedure





1. Install the coil spring and the insulator on the lower control arm.
- The coil spring is installed with the tape at the lowest position, and a gripper notch at the top (2).
- Inspection drain holes (3). One hole must be covered by the end of the spring, and one hole must be open.
- Secure the spring with a chain through spring and the control arm.
- Make sure the spring insulator (1) is on top.





2. Support the control arm using the J 23028-01.
3. Install the lower control arm in place on the frame. Guide the control arm into place with a pry bar.

Notice: Refer to Fastener Notice in Service Precautions.

Important: The pivot bolts must be installed in the proper direction.

The nuts must be tightened with the control arm at Z height. Refer to Trim Height Inspection Procedure in Suspension General Diagnosis.
The front nut must be tightened before the rear nut.





4. Install the pivot bolts and the new nuts.
4.1. Insert and tighten the front bolt first.
4.2. Remove the chain and the jack.
- Tighten the nuts to 137 Nm (101 ft. lbs.).
5. Install the stabilizer shaft. Refer to Stabilizer Shaft Replacement (All Except C3500HD).
6. Install the shock absorber. Refer to Shock Absorber Replacement (RWD-All Except C3500HD).
7. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Single Front or Rear Wheels) in Wheels, Tires and Alignment.
8. Lower the vehicle.
9. Check the front wheel alignment. Refer to Measuring Wheel Alignment in Wheel Alignment.