Do I need any brackets or fasteners to install these?

These mount at factory attachment points using your truck's existing hardware. You're swapping the assemblies themselves — no additional brackets or custom fasteners needed.

Will I need to modify my wiring harness?

Installation method isn't specified in the product details — test-fit the connectors with your existing harness before committing to any modifications. Most plug-and-play swaps work, but your truck's connector style should be verified first.

What's your return policy if these don't fit?

Contact ModSupply directly for return terms and conditions. Have your vehicle information ready when you reach out.