Does this mount to factory attachment points?

Yes. This bar uses factory mounting points — no drilling or frame modification needed. You'll want to verify the actual mounting hardware before installation to ensure you have everything required.

Can I drive on this or just step on it?

This is a step bar, not a running board. It's designed to support body weight for entry and exit. Avoid driving or placing heavy load on the bar itself.

Does it need painting before I install it?

Inspect the finish before mounting. If raw or bare spots are visible, light surface prep and paint will extend the life and match your truck's color. Finish condition will determine if that's necessary for your install.