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Mod | | | Forums66 Topics128,028 Posts1,055,414 Members48,422 | | Most Online14,466
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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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2013 Posts: 1,361 'Bolter | | 'Bolter Joined: Sep 2013 Posts: 1,361 | Comments follow on my turn signal installation (1951 3600 6 volt). I used a 535 flasher from NAPA (made in China), the flashers were fast, like a bulb was out...not the case though. Also the flasher did not make a perceptible clicking noise even though it is billed as a thermal unit and not one of the newer generation electronic flasher units.
I found a NOS Tung Sol 6V 535 flasher made in the USA on ebay and picked it up for around $15 delivered.
Good news, the flashers now flash at a reasonable rate and its easy to hear the good old fashion Click-a Click-a of old.
So, my advise is to consider something other than the NAPA 535 for your 6 volt flasher needs.
Last edited by moparguy; 02/23/2016 3:49 PM.
RonR
1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5
| | | | | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | When I was at 6 volts, a new 6-volt flasher went way too fast also. I went to a junkyard and found an old flasher in a junked AD. They gave it to me free and it flashed just right.
Last edited by Wally / Montana; 02/24/2016 12:36 AM.
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 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | In this link you will see the difference and the reason the NAPA flashers work complete different, and not in a good way. Four pictures, scroll right.
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