Front Wheel bearing replacement on GMC Sanoma

Looks like a easy 1. It's 1 piece that bolts in. Bolt heads are on the backside

1. Jack the vehicle up and support with proper jack stands.
2. Have a helper hold the brake pedal while you loosen the Axle Shaft Nut. This usually requires a large socket (30mm or larger) and impact wrench.
3. Remove the brake caliper and brake rotor. Use string or a plastic tie to hang the caliper up and out of the way.
4. Unplug ABS sensor (if applicable)
5. Unbolt the hub flange. The hub may come free from the axle shaft easily, if not, use a gear puller or similar tool that pulls on the hub while pushing on the axle shaft. DO NOT try to drive the axle out with a hammer, this could ruin your axle CV joints.

Reverse order to install.

What do you mean by complete? The front wheel bearing is a complete unit with an inner and outer race.

You didn't mention 2 or 4 wheel drive? Is yours 2wd?

There should be a small notch on opposite sides of seat area where cup is seated. By going thru to the backside of each cup you can use these the get a spot to tap on the race shell(cup)with a punch or adequate sized screwdriver head. By tapping alternately on each side you work the cup out. You then install new 1 by tapping evenly around edge or using old bearing to drive it in all the way. Have fun