WelcomeCustomer You need to remove the front hub assembly to get the rotor off. Below are the instructions to get them off. Please ask if you need more information or advice.
2005 Chevrolet Colorado Pickup - 4WD | Canyon, Colorado (VIN S/T) Service Manual | Brakes | Disc Brakes | Repair Instructions | Document ID:(NNN) NNN-NNNN
Wheel Hub/Speed Sensor Replacement Removal Procedure
Caution: Refer to Brake Dust Caution in the Preface section.
Caution: Refer to ABS Component Handling Caution in the Preface section.
Important: The wheel hub and speed sensor are serviced as an assembly. The are not service as individual items.
Important: Mark the holes used to mount the speed sensor electrical connector before removing. This will ensure the proper location of the speed sensor electrical connector for installation.
Important: The following service procedure is to ensure that the speed sensor wiring harness is properly positioned so that the length of the wiring harness is correct for installation. Failure to do so could cause damage to the speed sensor wiring harness.
Important: The following service procedure applies to those vehicles that are equipped withXXXXXONLY.
Important: Perform the following service procedure with the brake rotor on a flat surface.
Important: The splash shield will come off the steering knuckle when the wheel bearing/hub, brake rotor is removed.