I Have A 58 And All My Gauges Match Except The Fuel/temp. Apparently Someone Could Not Get The Origninal Gauge To Work And Put In A White Face W/ Black Letters And I Need Black Face W/white. The Gauge Works . I Did The Battery Testy In The Shop Manual And The Hands Move When Voltage Is Applied. So It Is Either The Cv Reg Or The Sending Unit. I Haven't Tested Them Yet. But I Was Wondering It Someone Need The White Face And Wanted To Trade A Black Face For. Let Me Know.