Removing
1. Raise the rear of the car and secure it on stands. Remove the corresponding rear wheel.
2. On vehicles with ABS, unscrew the bolt securing the sensor mounted on the wheel and remove it from the trunnion.
3. Remove the rear wheel hub.
4. Using a G-clamp, pinch the brake hose at the point closest to the brake master cylinder.
5. Clean any traces of dirt around the connection of the brake pipe to the working brake cylinder. Unscrew the union nut and remove the brake pipe from the brake cylinder.
6. Disconnect the handbrake cable. Unscrew the 4 bolts securing the brake shield assembly to the trunnion and remove the shield from the vehicle.
7. Place a jack under the outer end of the lower arm and raise the jack just enough to compress the rear spring slightly.
8. Unscrew the nut and release the link of the anti-roll bar from the trunnion.
9. Unscrew the nut and remove the control arm ball joint from the pivot pin.
10. Unscrew bolts and nuts of fastening of external hinges of the bottom and top lever.
11. Unscrew the nut and remove the bolt securing the rod to the trunnion. Remove the pin from the car.
12. Check the condition of the trunnion and, if defective, replace it.
Installation
1. When installing the trunnion, only new nuts must be used. Lubricate pivot bolts and suspension nut contact surfaces with Molykote Q Rapide Plus multipurpose lubricant.
2. Reinstall the trunnion, insert the outer pivot bolts that secure the trunnion to the upper and lower arm and the linkage bolt. Screw new nuts onto the bolts by hand.
3. Install the anti-roll bar link and control arm ball joint. Fasten with new nuts, tightening them to the required torque.
4. Install the brake shield assembly on the trunnion and tighten the shield fastening bolts to the required torque.
5. Install the hub onto the trunnion.
6. Connect the brake pipe to the working brake cylinder and tighten the fastening nut to the required torque. Remove the clamp from the brake hose and bleed the air from the brake system.
7. On models with ABS, install the wheel speed sensor on the stub axle.
8. Install the rear wheel and lower the car. Rock the car so that all suspension elements fall into place. Tighten the nuts securing the upper and lower hinge bolts and the tie rod mounting bolt to the required torque.