The function of the shock absorber is to dampen harsh spring movement and provide a means of controlling the motion of the wheels so that the bumps encountered by the wheels are not totally transmitted to the body of the truck and, therefore, to you and your passengers. As the wheel moves up and down, the shock absorber shortens and lengthens, thereby imposing a restraint on excessive movement by its hydraulic action.
A good way to see if your shock absorbers are working properly is to push on one corner of the truck until it is moving up and down for almost the full suspension travel, then release it and watch its recovery. If the truck bounces slightly about one more time and then comes to a rest, you can be fairly certain that the shock is OK. If the truck continues to bounce excessively, the shocks will probably require replacement.
REMOVAL & INSTALLATION
- Remove the hubcap and loosen the lug nuts.
- Raise front of the truck and support it with safety stands.
- Remove the lug nuts and the wheel.
- Unfasten the double nuts at the top end of the shock absorber. Remove the cushions and cushion retainers.
- On 2WD models, remove the 2 bolts which secure the lower end of the shock absorber to the lower control arm. On 4WD models, remove the lower thru-bolt.
- Remove the shock absorber.
- Install the shock absorber and tighten the lower mounting nuts/bolt to 13 ft. lbs. (18 Nm)-2WD; 101 ft. lbs. (137 Nm)-4WD Pick-Up and 4Runner; 47 ft. lbs. (64 Nm)-Land Cruiser. Tighten the upper mounting nut to 18 ft. lbs. (25 Nm).
- Install the wheels and lower the truck.