Will these skirts block access to my jack points?

No. The two-piece design is split at the door line, so the front section sits clear of the factory jack point location on the rocker. Verify your jack point location before installation to confirm clearance with your vehicle's specific geometry.

Do I need to sand and prime these before painting?

Yes. These ship in raw FRP condition, which means the surface is prepared for paint application. Sand the surface lightly to ensure proper adhesion, then apply your chosen primer and topcoat according to your paint system's instructions.

How do I know which bolts to use for installation?

Refer to your vehicle's service manual or the mounting point on the rocker panel itself — it will tell you the fastener size and torque spec. FRP panels use standard hardware; use stainless steel fasteners to avoid rust at the mounting points.