wunderwerks

Other than the stud vs spade connection to the wiring harness, is there any difference in the internal workings of the two different types of senders. I believe the stud was intended for the gauges and the spade was intended for the oil lights.

wunderwerks

Could I successfully use a 66 sending unit on a 65 with an oil light? The new engine wiring harness came in a package stamped 65 with lamps but the connection is for a stud sending unit. Suggestions?

bop11

The 65 is a switch and the 66 is a variable resistor which will make the light glow at different levels and drive you nuts.

wunderwerks

That's the answer I was looking for. I'm going to have to replace the oil sender end of the new harness with a spade connector. Thanks for replying.

69mach1377

If you really want to know your oil pressure, get a mechanical gage.