Do the job right the first time. Use Rust Encapsulator to prevent rust growth. Also works great as a primer. Then paint with Chassis Black. This will paint all the suspension parts and frame on your project correctly. Proper for most makes and models. It's high solids content provides up to 4 times the coverage of similar size aerosols. It is specially formulated from a tough epoxy base to resist chips, salt and mud corrosion and other forms of road abuse!