Hi All,
My 66 did not come with 4 way flashers, does anybody know of an aftermarket kit I can install?

Thanks, Jerry

There was a set up available back then that mounted on a bracket under the dash and spliced in to the turn signal wires. It had a big red plastic knob on it that I believe lit up when the flashers were on. My 64 had one when I bought it and I remember installing one on my 55 Chevy. If I can find the one for the 64 I'll post a picture.

Probably a few ways to do it. JC Witney sells a turn signal/hazard flasher assembly that mounts on the column. Part number is ZX138973N.

Thanks, I'll check out JC Whitney.
Any other options?

Depends how handy you are. A switch, a relay with 3 contacts, and a flasher, wired together and tied into the turn signal wiring will work. Don't know where to get something like this ready made anymore.

Hey John,
any way you could post a schematic? If I had one I know I could wire it up.
Thanks,
Jerry

If only I could draw:
A few ways to do it. See if this makes sense.
Run a fused 12 volt line to a switch. This line comes from an always-hot or battery side of the fuse block. This way the hazard circuit has power when the car is off.
The other side of the switch goes to a flasher can and socket.
The other side of the flasher can goes to one side of a relay coil and to all 3 swinger contacts of the relay.
The remaining relay coil wire goes to ground.

When the switch is closed, it powers the flasher can. As the flasher can opens and closes, it activates the relay causing that to open and close with the movement of the flasher can.

As I mentioned above you will need a relay with 3 sets of contacts in it. That’s because the cars wires can’t be tied together without affecting normal turn signal/brake operation.

The normally open (NO) relay contacts are tied to the wires on the turn signal switch. No need to cut the wires. Just strip them back and tap into them. On each of the three NO contacts, connect one of these wires, brake, right front turn signal, and left front turn signal.

As the relay closes, 12 volts gets applied to each of the three wires until the flasher can opens and turns them off.

Other ways to do it but this is the simplest one I can think of.

Thanks John!
I know what I will be doing this weekend.

An afterthought. Don't put the switch in the fused positive line. Run that line directly to the flasher. Put the switch in the negative (ground) wire that goes to the relay coil.
The reason:
Switching the positive line puts the current for both the relay coil and the lamps across the switch. The switch won't last. Putting it in the negative relay coil wire it sees only the low current required by the relay. Works the same but you can use a small switch that way.

Thanks again John,
I'm pretty sure I got it, I'm trying to post a crude schematic.
Hopefully this will work........

cool it worked!
No autographs, please :-)

Really great. Couple of things. You have it shown to the battery. I think that's artistic license. I assume you will hook it to the fusebox. Should be a terminal around the cigarette light fuse.
Also you know to tie both the relay coil and all swinger wires together. Make sure the relay is big enough and has at least 3 sets of contacts.
Later, time to head home.