Does anyone know which parts and wires to use to either retain the incandescent bulbs or convert to LED's?

Because safety and to updating the look and function of our Hachi-Roku's is fun.

yes; convert single post to dual post connectors. once that is done, connect to your oem flasher.

In addition, you need dual filament bulbs.

good luck.

I'll be ordering some handles from you after I get off work today.

Thanks for the information.

What about LED's?

led bulbs are fine but when you use led as flashers u need to used led flasher relays so they wont flash too fast!

I checked and it looks like I do have 'dual post' side marker lights.

When you refer to single post that is a single wire right?
& when you refer to dual post that is two wires right?

It looks like:

(--)

I don't want to T-tap or crimp. I am going to try and use some Weatherpack connectors to keep out the water.

I walked into autozone and o'reilly's and didn't find a compatible dual filament. I'd hate to hack up the lens.

Dual filament. will have 3 wire connectors on it. Ground, Parking, Flasher.

I installed the Pilot brand bright white LED's. Now I need either a relay per side marker, front and rear; or i can wire a DRL-1 module just like stated on Danielsternlighting.com.

Any ideas so we can keep it looking factory? And still be plug and play?

Thanks for the info MisterJerk. I only have one filament. And there doesn't seem to be a way to put in a dual filament without cutting up the backside of the housing.