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Labor Day Putting down your wrenches or time for
MORE wrenching? 
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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!
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#87659 04/04/2005 10:35 PM | Joined: Dec 2004 Posts: 322 'Bolter | | 'Bolter Joined: Dec 2004 Posts: 322 | just saw a replacement "bulb" for taillights, at local swap meet, that was a LED (light emitting diode?) neat idea: no heat, much bighter. anyone used these?
Blue 50
1950 3100 w/57 235
Patrick’s Saginaw 4 speed and 3:55 rear end
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#87660 04/04/2005 10:43 PM | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | I have a third brake light that uses LED. Works great. Your turn signal may not work right. The flasher depends on a specific curent draw to function properly. 
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
#87661 04/05/2005 12:32 AM | Joined: Oct 2001 Posts: 578 'Bolter | | 'Bolter Joined: Oct 2001 Posts: 578 | I notice that all the new busses and commercial trucks are using them. Must be specially designed circuits. You don't need a flasher, just a timing chip to make them light up.
"Happiness equals reality minus expectations" - Tom Magliozzi
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#87662 04/05/2005 1:42 AM | Joined: Jan 2001 Posts: 613 Member | | Member Joined: Jan 2001 Posts: 613 | you can get a flasher that works with leds. | | |
#87663 04/05/2005 4:17 AM | Joined: Sep 2001 Posts: 109 Member | | Member Joined: Sep 2001 Posts: 109 | I've had a high fail rate with these bulbs, in 2 different cars. reason is they string the LEDs in series to get the 2.2volt required. This is why you see burnt sections on LED taillights every so often. When voltage is first applied, the full 14 volts hits the first LED for a microsecond, which kills it quickly. I'm making my own using a 680 ohm resistor for each high-brightness LED and mounting them in a drilled backing plate. Each LED-resistor section is then wired parallel to each other. No failures yet!
Best of luck!
John Kennedy
1950 Suburban street rod
Pics in the Gallery.......
new site up!
http://home.joimail.com/~kennedyjp/
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