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Old 09-17-2011, 12:54 PM
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gfw1985
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Originally Posted by LARIAT 85
Sorry, I don't know much about electricity. What does this mean?

I checked RockAuto, and it seems that the first relay I posted was used from 1979 - 1984.

The other style in the second picture was used from 1985 and up. I am not sure why the design was changed, but since my truck has a carburetor and Duraspark ignition, it should work fine on my truck.

Handling both of these relays, I can tell you that the one in the first picture (older style) is a bit heavier and more solid than the newer style.
Watch out for some of the newer models. At some point they did away with the "I" terminal. I think it was an 86 Ranger I was working on had that newer style.