Do these bolt directly to the factory knuckles?

Yes. These assemble mount to factory mounting points without drilling or modification. Standard socket and wrench set is all you need for removal and installation.

Will these work if I replace only two wheels instead of all four?

Mixing new and worn bearings can cause uneven brake wear and vibration in AWD systems. A full four-corner replacement keeps all corners matched and balanced.

What if one bearing fails within the first month?

Contact ModSupply directly with your order number and photos of the defect. Warranty claims are handled on a case-by-case basis and typically resolved within 5–7 business days.