I'm restoring a 2003 Ford Ranger. It has the 5 spoke Ford mags that came with the truck that year. I've been able to sand off some corrosion that was on the mags using bodywork sandpaper, but I am unsure what the finish on the mags is so I can refinish them. It appears to be some sort of silver appearing metalflake paint. Is that correct, and if so, where can I get some so I can refinish the mags?

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2003 Ranger Edge - Black with black/grey interior. 4.0L engine, cold air induction, cat back exhaust, tune chip. Bilstein shocks, Limited Slip axle, Ultra Gauge