I'm trying to identify this brake light switch. I believe it to be from a GM vehicle and it must be newer than 1968. It has a patent number 3408464 on it (no other numbers on it) and that patent was issued in 1968.
1 pair of terminals is closed with the plunger depressed, other pair is open. When the plunger is released, that sequence exactly reverses on both pairs of terminals. I also believe it came on vehicles with cruise control installed from the factory. That is all the clues I have.
Yup, i was going to say 1979 montecarlo with cruise. I have that switch in my wagon and truck for the cruise control. I think one of them came out of a late 70's GM truck too.
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Beaumontguru
MY BEAUMONT HAS 4 STUDDED TIRES AND 2 BLOCKHEATERS......AND LOTS OF OIL UNDERNEATH. The other one has a longer roof.