Will these panels block access to the factory jack points?

No. These skirts are designed to work around OEM jack point locations, so you can still safely lift the vehicle from factory-specified points without removing the panels.

What should I do to prepare these panels before painting?

Sand the surface with appropriate grit to promote paint adhesion, then clean thoroughly to remove all dust and contaminants before applying your chosen primer and topcoat system.

Do these panels come with mounting hardware?

The kit includes the 2-piece panels themselves. Verify your vehicle's OEM rocker attachment points and fastener specifications in your service manual before installation to ensure proper hardware selection.