Chevy went with the thermal breaker in '50, my '49 3800 has two fuses for the
headlights, one for the left and one for the right.
I assume they are separate so one blown fuse wouldn't put you in the dark!
49 3800 Chevy panel
54 640 GMC firetruck
Grant Galbraith wrote:
> You don't mention what year you are working on. AD trucks as well as I
> others have no fuse for the headlights but use a thermal circuit breaker that
> attached to/part of the headlight switch. Excessive current will heat up a
> strip enough so that it allows gravity to disconnect it. When it cools it will
> return and make electrical contact. A persistent short will make your lights
> repeatedly go n and off but hopefully not burn up the wiring.
> 50 Chevy 3100
> 52 GMC 150
> EEHodges@aol.com wrote:
> > I bought a wiring harness from Golden State Pickup Parts (long before the
> > thread on that subject). I started installing it and for the most part I
> > think it will fit with a few mods. One strange thing is I don't find
> > connections for the fuse box for the headlights (upper and lower beam) and
> > park lights. There are connections for the stop and tail lights. Seems odd -
> > anyone seen this? I think I'll make a mod to run the lights through the fuse
> > box.
> > Thanks for help,
> > Emory Hodges
> > EEHodges@aol.com
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959