If it’s red oxide color, I would use the PPG’s DP epoxy primer in red (DP74LF), & DP402LF activator. For that matter, get another qt of DP90LF (black) and paint all the front suspension parts.
All the sheet metal was painted a “low” gloss black. I say low gloss because the new urethanes have that “wet” look to them and that’s TOO glossy.