Cadillac 25997510 Front Lower Control Arm Assembly

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To remove and install a lower control arm on a vehicle, first loosen the wheel lug nuts, raise the vehicle, and support it securely on jackstands placed under the frame rails. Disconnect the stabilizer bar link from the control arm and remove the shock absorber lower mounting fasteners. On 4WD models, remove the front driveaxle. If working on a model with torsion bar front suspension, remove the torsion bar. Using rope or wire, support the upper control arm and steering knuckle from the top of the shock absorber. To disconnect the lower control arm from the steering knuckle, loosen the ball joint nut a few turns, install a ball joint separator and break the ball joint loose from the knuckle, then remove the nut. Remove the lower control arm pivot bolts and nuts, noting which way the bolts are installed and, on 4WD models, how the washers are installed. Pull the lower arm from its frame brackets. To install the arm, position it in the frame brackets and install the bolts and nuts, but don't tighten them yet. Attach the balljoint to the steering knuckle, install a new nut, and tighten it to the torque specifications. The remainder of installation is the reverse of removal. Be sure to tighten all fasteners to the torque specifications. Install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts to the torque specifications. If working on a model with torsion bar front suspension, be sure to check and adjust the ride height. Have the front-end alignment checked and, if necessary, adjusted.

After disconnecting the ball joint, proceed with these steps: Remove the lower control arm pivot bolts and nuts, noting the orientation of the bolts and, on 4WD models, how the washers are installed. Pull the lower arm from its frame brackets.

After removing the wheel, you should do the following: Position a floor jack under the lower control arm to take the spring pressure off the upper control arm. Mark the relationship of the adjusting cams to the brackets on the frame. Unbolt the brake hose/wheel speed sensor bracket from the upper control arm. If you're working on a 4WD model, remove the driveaxle.

To disconnect the lower control arm from the steering knuckle, follow these steps:Loosen the ball joint nut a few turns. Install a ball joint separator and break the ball joint loose from the knuckle. Remove the nut.

To install the new lower control arm, follow these steps: Position the arm in the frame brackets and install the bolts and nuts, but don't tighten them yet. Attach the ball joint to the steering knuckle. Install a new nut on the ball joint and tighten it to the torque specifications.

To disconnect the lower control arm from the steering knuckle, follow these steps: Loosen the ball joint nut a few turns. Install a ball joint separator and break the ball joint loose from the knuckle. Remove the nut.

To disconnect the upper control arm from the steering knuckle, follow these steps:Loosen the upper ball joint nut a few turns.Install a puller or ball joint separator.Use the puller or separator to break the ball joint loose from the knuckle.Remove the nut and upper control arm pivot bolts and nuts, noting which way the bolts are installed.

To install the new upper control arm, follow these steps:Position the arm in the frame brackets and install the bolts and nuts, but don't tighten them yet.

The initial steps to remove the upper control arm on a vehicle are as follows: Loosen the wheel lug nuts. Raise the front of the vehicle. Support the vehicle securely on jack stands. Remove the wheel.

The initial steps to remove the upper control arm on a vehicle are as follows: Loosen the wheel lug nuts. Raise the front of the vehicle. Support the vehicle securely on jack stands. Remove the wheel.

The initial steps to remove and install a lower control arm on a vehicle are as follows: Loosen the wheel lug nuts. Raise the vehicle. Support it securely on jackstands placed under the frame rails.

After removing the wheel, you should do the following: Position a floor jack under the lower control arm to take the spring pressure off the upper control arm. Mark the relationship of the adjusting cams to the brackets on the frame. Unbolt the brake hose/wheel speed sensor bracket from the upper control arm. If you're working on a 4WD model, remove the driveaxle.