Will these interfere with jack point access?

No. The rocker design is contoured to work around factory jack points. Before installation, verify your jack location on the vehicle frame and test clearance with the skirts in place — slight trimming may be needed depending on your specific jack geometry.

Do I need to paint these before installing?

The skirts ship in raw FRP condition, so primer and paint application is up to you. You can install unpainted and finish them later, or sand, prime, and paint before bolting on — either order works. Sand the surface lightly before primer for best adhesion.

How much ground clearance change will these add?

The rocker profile adds minimal extension to the factory line — no significant lowering or raising of overall ground clearance. The aggressive look comes from the styling, not height. Verify fitment to your specific suspension setup and any aftermarket components before final installation.