Will this mount with factory hardware, or do I need new bolts?

These mount at factory rocker points — your existing hardware works. Inspect bolts for corrosion before reinstalling; replace any that are seized or damaged.

Do I need to prep or prime this before bolting it on?

Chrome finish arrives ready to install — no painting or priming needed. Just clean the mounting surface on your truck and bolt it down.

What's the return window if it doesn't fit?

Test-fit before fully torquing down. If gaps appear or bolt holes don't align, contact support with photos before committing to permanent installation.