Cadillac 20917465 Rear Upper Control Arm Assembly

In order to take off the trailing arm, start by loosening the rear wheel lug nuts and raising the rear of the vehicle, supporting it securely on jackstands placed underneath the frame rails. Also, block the front wheels in order to prevent a rolling vehicle and remove the wheel(s). If equipped with Autoride, take out the linkage to height sensor from its bracket on trailing arm. The nuts, washers and bolts at each end of the trailing arm should be removed after supporting the rear axle using a floor jack. Remove it and check its bushings for signs of wear or damage. If you can get replacement bushings, just go with that option as you take it to have new ones pressed in while old ones are being pressed out. To put it back up there temporarily, raise the rear axle with a floor jack till you create an imitation of normal ride height then tighten down your fasteners based on torque specifications. In addition, if you want to remove your track bar then raise your car's rear side as well as secure this well using some heavy stands positioned beneath frame rails. Moreover here is also blocking off front wheels so that car does not roll away plus detach parking brake cable from clips on arms. The bar should be unfastened by removing bolts/nuts from both ends and finally pulling out whole element. Inspect these bushings which are in that bar looking for any signs indicating corrosion presence among them all respectively like shown below. On another note, buy new bushes and have those old one pressed out as well as fresh ones pushed into place together with rod itself at mechanics' place around instead where it is they will make sure that everything fit before staining yourself trying do everything alone without their help even if only repairing small things within vehicle hence do nothing but taking entire day removing such parts before bringing them over here either way since this would be much easier than what was initially thought especially when someone tried doing so alone. Raise the rear axle with a floor jack to simulate normal ride height, and tighten the fasteners using torque specifications on it as per my opinion.

Ensure the previously made marks are aligned before tightening the nuts to the specified torque.

Next, disconnect the stabilizer bar link from the control arm and remove the shock absorber lower mounting fasteners.

Inspect the bushings for any signs of deterioration.

Before removing the track bar, you should raise the rear of the vehicle and support it securely on jackstands placed underneath the frame rails. Additionally, you should block the front wheels to prevent the vehicle from rolling and detach the parking brake cable from the clips on the arm.

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.

The rear axle should be supported with a floor jack.

After removing the trailing arm, you should check the bushings for signs of deterioration. If replacement bushings are available, you should take the arm to have the old ones pressed out and the new ones pressed in.

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.Attach the ball joint to the steering knuckle.Install a new nut on the ball joint and tighten it to the torque specifications.

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.

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.