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Commodores are rear wheel drive therefore dont have cv joints in the front.Check the front wheel bearings/hubs for play/looseness.Push and pull the wheels in and out at the top and bottom of the wheel.Jack it up to do this.It should have the tiniest bit of movement.It could also be the brake disk, brake pads or seized brake calipers not retracting the pads from the disks properly.If it's the front... CV joints? Will click when the wheels are at full lock...