Do I need to drill into the truck bed or frame?

No. This bar mounts at factory rocker points using existing holes — no drilling, no welding. Just bolt it down with a socket set.

Will the silver finish hold up to mud and road salt?

Powder coat is durable, but it's not bulletproof. Rinse it off after heavy use and you'll keep it looking good for years. If chips do occur, they'll need touch-up paint.

What hardware do I need to bolt these on?

Mounting brackets come with the bars. Confirm bolt size and torque specs against your service manual before tightening — don't over-torque rocker fasteners.