Do I need to replace brake components when I install this hub?

Not necessarily. This is a hub and bearing replacement — your existing brake rotors and pads stay unless they're worn. Inspect them during install and replace only if needed.

Can I reuse the wheel speed sensor from my old hub?

The tone ring is already integrated into this assembly. If your old sensor mounts to the knuckle or suspension, it should read the new tone ring without modification. Check clearance before final install.

What tools do I need to swap this in?

You'll need basic hand tools, a jack, jack stands, and a torque wrench. Tighten fasteners to your vehicle's service manual spec. No specialty pullers or presses required since this comes as a complete unit.