How to Replace Rear Bearing Hub Assembly 03-07 Cadillac CTS

Difficulty: Advanced · About 120 min · Cadillac Cts

Replace a rear hub and bearing assembly on a 2003–2007 Cadillac CTS, protecting the ABS sensor and parking-brake cable while removing the seized hub.

Steps

1. Raise the vehicle and loosen the axle nut

   Loosen the wheel nuts, raise and support the rear securely, and remove the wheel. Hold the hub as needed and loosen the axle nut before removing the brake components.

2. Remove the brake assembly

   Remove the rotor retaining screw and caliper bracket fasteners. Support the caliper from the suspension, remove the rotor, and set the components aside without straining the brake hose.

3. Disconnect the sensor and parking brake

   Unplug the ABS sensor and remove the parking-brake cable bracket fasteners. Unhook the cable from its lever carefully, avoiding bends or damage to the cable sheath.

4. Extract the old hub

   Tap the axle splines free with a suitable punch, then remove the hub bolts from behind the spindle. Attach the hub puller and draw the hub and backing plate out without levering against the ABS sensor.

5. Install the new hub assembly

   Clean the spindle bore and mounting face. Position the backing plate and replacement hub with the sensor oriented correctly, start the bolts by hand, and tighten them to the vehicle's specification.

6. Reconnect cables and brake parts

   Reconnect the parking-brake cable and ABS plug, then reinstall the rotor and caliper bracket. Tighten the axle nut and brake fasteners to their vehicle specifications.

7. Reinstall the wheel and test

   Refit the wheel and tighten its nuts in a star pattern to specification. Confirm the ABS wiring is clear, then perform a cautious road test and check for warning lights or bearing noise.

Check your vehicle’s repair manual for exact specifications and fit.