Pull em off, scrub em with hot soapy water, dry em, then wipe down with wax and grease remover, or paint reducer. Then spray em, you should be fine.
97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.