Will this work with my park distance control sensor?

Yes. The sensor cutout is pre-drilled to factory spec, so your PDC sensor mounts directly without adapters or additional drilling.

Do I need both left and right covers, or can I just replace one side?

You can replace a single side. This is the left-side cover only—measure the damage or wear on your truck to confirm which side you need before ordering.

Will this chrome finish scratch or peel over time?

Chrome is durable but can chip if struck or exposed to road salt without regular cleaning. Inspect for damage after winter or high-mileage use, and touch up if necessary to prevent rust creep.