Do these covers require any adhesive or fasteners to install?

Installation method and hardware requirements are not specified in the product data. Test-fit the covers on your handles first — you may need to use automotive-grade adhesive tape, silicone, or fasteners depending on the fit tolerance. Check the product documentation that ships with your set.

Will the chrome finish need any prep or sealing before I install them?

The covers arrive ready to install. No sanding, priming, or painting needed. Just clean your door handles with a dry cloth before applying to remove dust and ensure the best contact surface.

Can I remove these later without damaging my truck's paint?

If installed with adhesive tape, these should come off cleanly when peeled slowly. If you use permanent fasteners or silicone sealant, removal may require more care. Consider your install method before committing — adhesive-backed tape is the most reversible option.