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Im looking at ordering a dash wiring harness from Willcox, how we the gauges I have in my car look like it maybe be from a 1974? No manual oil gauge. Would I need to order a 1974 harness in that case or still order a 1973 dash harness. And anyone know where I can get the resistors for the fuel and oil pressure gauge?
Your question and sentence lacks clarity and there are differences. A 75 dash wiring harness includes a wire for the HEI tachometer that changes from the cable used in previous years. 1974 introduces a temperature gauge sending unit, another wire. Gauge faces differ in 75 from those in 73/74 but that shouldn't matter.
It looks like you have a 73 gauge cluster with the exception of the oil pressure gauge. See the attached pictuer of teh back of my stock 73 gauge cluster.
Fran
1973 center gauges
