Gauge Tester For 1955-1986 Ford Vehicles With 73-10 Ohm More ITEM # TL-GT001 Test the function and accuracy of Fuel, Temperature, and Oil Pressure gauges. Simple slide switch lets you test gauges at high, medium and low readings. Designed to work specifically with your 1955-1986 Ford Vehicle with ohm range of 73-10 with non-linear coil resistance. Instrument cluster gauges can be tested without being completely removed from vehicle by testing at sending unit location. Was: MSRP: Now: $35.00 View Details