Will these interfere with jack point access?

No. The two-piece design is engineered to work with factory rocker lines and OEM jack points. Verify clearance on your vehicle before final installation by checking that the underside profile does not obstruct your jack pad location.

Do I need to paint these before installation?

Not required, but recommended. They ship in raw FRP condition. Sand and prep the surface with standard automotive grit, then apply primer and your chosen topcoat for a seamless finish. Many builders install unpainted and finish them later—your call.

What ground clearance change should I expect?

These are designed to sit flush with the factory rocker panel. You won't see measurable clearance loss. If you're running lowered suspension, confirm the skirt profile clears any dips or obstacles on your specific setup before final mounting.