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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | I'm rethinking how I've aimed my 12-volt fog lamp (NAPA 4412A). The pictures show the lamp and the pattern that I now have. I use it mostly to throw more light to the front but I'd still like to get it right. Should the pattern be horizontal or vertical? Should it be aimed a little low and to the right a bit? Thanks! Fog Light. Fog Light Pattern. . . .
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
| | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | The whole idea of fog lights was to shine under the fog. We used to aim them by measuring the height of the light and them aiming them at a spot about 30 feet away on the same horizontal plane. They really didn't work that well but it helped some. We usually had them hooked directly to the battery with a toggle switch in a handy spot. In those days it was not that uncommon for headlights to go out. If that happened, you could flip a toggle switch and have some light.
| | | | | Joined: Jan 2013 Posts: 1,384 Shop Shark | | Shop Shark Joined: Jan 2013 Posts: 1,384 | We used to aim them straight out, not to the right because you want to see as much as possible and they certainly won't be in anyone's eyes.
A lot of thick shore fog in New England so you would be driving slow so aimed 2 to 3 car lengths ahead.
take the height to the center of the lamp, divide it by 3 and drop that amount for every car length. | | | | | Joined: Mar 2007 Posts: 863 Shop Shark | | Shop Shark Joined: Mar 2007 Posts: 863 | usually 4 inches below the low beams at 20 feet out.... | | | | | Joined: Feb 2004 Posts: 29,800 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,800 | Lucas flamethrowers on a momentary-contact starter button- - - - -windshield height to the guy who won't dim his lights!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Sep 2015 Posts: 17 New Guy | | New Guy Joined: Sep 2015 Posts: 17 | Oooo thats nasty Jerry :o)
55 Chevy Stepside.
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