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mr48chev · 09-15-2013, 07:38 PM

LDO beat me to it, the switch in your truck appears to be a standard issue later model switch. Not that it's entirely a bad thing but it will take a bit of figuring out.

I'm not sure what that switch is, I thought it was mid 70's GM but it doesn't match the most common one for Chevrolet in those years.

The two ones that are at the bottom of the photo are probably to the dash lights that run through the resistor one being in and one being out. The bar running down the middle is probably the hot feed in and the others are the headights and park/tail lights. The headlights will only be on when the knob is pulled all the way out and the park/tail will be on when the switch is pulled to the first notch or all the way. an ohm meter or continuity tester should help you figure that out.

09-15-2013, 07:38 PM	#3
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,367	Re: 1957 Chevy 3100 Headlight Switch Help LDO beat me to it, the switch in your truck appears to be a standard issue later model switch. Not that it's entirely a bad thing but it will take a bit of figuring out. I'm not sure what that switch is, I thought it was mid 70's GM but it doesn't match the most common one for Chevrolet in those years. The two ones that are at the bottom of the photo are probably to the dash lights that run through the resistor one being in and one being out. The bar running down the middle is probably the hot feed in and the others are the headights and park/tail lights. The headlights will only be on when the knob is pulled all the way out and the park/tail will be on when the switch is pulled to the first notch or all the way. an ohm meter or continuity tester should help you figure that out. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.