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For those of us that want to use our old style turn signal switch,but want to switch to LED lamps I just finished making piston rear taillights.I also installed led lamps front and rear.Got done and of course nothing worked.So I did some research and bought a LED compatible flasher still nothing.Did more research and bought one of these a CEC Industries EF33RL and everything works even the pilot light on the switch works.So we can have the best of both worlds.



Pete

12v

http://cecindustries.com/user/_ProdFlasher_view.php?editid1=EF33RL

And yes I should have said it's for a 12 volt system.


Pete

Untied pacific also has one 12v

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If you use LEDs on the rear only the standard flasher will work

Well don't buy the CEC flasher it quit working the indicator lamp after only an hour of driving ,had the truck out today.I'm going to try the United Pacific unit that Dads50 is showing.



Pete

Got the United Pacific one today and it's the same one as the CEC one just different package.


Pete

I would suggest a Tridon SD12 electro-mechanical flasher. They're a little more pricey that regular electronic flashers, but extremely reliable, I've been running them in both of my trucks (front and rear LEDs in the '55, front LEDs in the '85) for several years with no problems at all. They also make an audible click when they are on, just like the old style thermal flashers do. Any parts store should have them on hand, especially if they deal in HD truck parts.
BTW, the Tridon flasher is USA made, unlike most aftermarket electronics these days.

Are the Tridon flashers made in the USA or in AUS?
The link above does seem to show a USA phone number.

If they have a USA phone number/Website, please post information?
Thanks (I want to ask in they have one that will work with 6v positive ground).

I found one from Sweden, but it does not work.

Tim, I've done a little more research, it seems that their US distribution is done through Novita Technologies, which is based in Hendersonville, Tennessee. The parts themselves are identical, though, and the Tridon flashers I'm using are USA made. I did find a 6 volt flasher on the Novita site.
I can't say about 6 volt, but I've had no trouble getting the 12 volt versions locally.

Thank you very much, Bill

Now, I have to see if it is polarity sensitive (for a 6v positive ground GMC). And, it says electro-mechanical, but no specific reference to LED. I'll find out.

Their (Novita/Tridon) 6 volt flasher is 2-pronged ( X & L ).
What will I lose if my system is designed for a 3-way flasher? (I'll call them and also ask.)

The signal wiring is a somewhat of a mystery to me. I got mine working (on my 6v neg ground Chev Suburban) but it was never with strong 6v bulbs (I think due to bad grounds, from epoxy/urethane paints not allowing screws to make good grounds). I will fix the grounding first.

I have found 6v LED bulbs for all my directional/marker lamps - they are VERY BRIGHT. But my various flashers do not work consistently. I'll be rechecking the wiring/routing and the grounds this summer.

I'll report back with my experiences (but, not until this summer, unfortunately).

Thanks again,

Tim, the 3rd prong is for a pilot light.

Thanks, Charlie

The 54 Chev truck RPO turn indicator flasher in my Suburban has three prongs.

Also I do not recall have a left/right flasher - just one bulb that would flash for either side signal being on (presumably, the black wire in this illustration).

Here are all the instructions, if you are interested. This wiring worked OK (providing dim bulbs) for several years.

I had planned on wiring the one dash bulb for the COE the same way (using mostly LED front and rear signal bulbs, if my 6v flasher works it supposedly works on +or- ground)?

I'll find out when I get to wiring it. In the worse case scenerio, if I find a flasher that makes an audible click, I'll get by. Or, I'll use LEDs in the back and original incandescent bulbs in front.

That one will not work on my 52 it only has 2 prongs so i would not have the pilot light working.The CEC after it burned out the pilot circuit still worked the signals.I'll put the regular bulbs in the front and use a standard flasher if this United Pacific one burns out the pilot circuit.

Thanks,Pete

Tim, now that you jogged my memory, I recall my '55.1 Chevy did only have one pilot light. I'll edit my previous post.

Thanks Charlie - should I look for a 3-prong/pin flasher?

TRIDON / NOVITA LL525 Electro-Mechanical Flasher - 2 pins - 6v ~$14

TRIDON / NOVITA LL535 Electro-Mechanical Flasher - 3 pins - 6v ~$16

Both should work on positive/negative ground.

Neither will work with LED bulbs, unless you use a load resistor.

Does anyone have a lead on load resistors?

I think I have already bought some - if this works?
Would 1 on each side do the job, or, do I need 2 on each side?