Do I need to replace both sides at the same time?

Yes. This kit includes matched pairs for that reason — wear patterns are usually symmetrical. Installing one new bearing and keeping an older one on the opposite side creates imbalance and uneven brake wear down the road.

What tools do I need to install these?

You'll need a hub puller or press setup to remove the old bearing, plus standard socket and wrench sizes. A torque wrench is essential — follow your vehicle's service manual for final tightening specs.

Are there any mounting brackets or hardware included?

The kit includes the bearing assemblies only. You'll reuse your existing mounting brackets and fasteners from the old hub.