Here is the how to for the tail light halos. This mod was done on stock 70-73 style tail lights; the halos I used might not work for earlier or later year tail lights. Measure yours to be sure.

This mod is much less involved than the headlights. I measured the inside of my tail lights, and started looking for some LED halos that would work. I found some again on Ebay that might work.

These are the exact 85mm halos I bought:

http://www.ebay.ca/itm/130556349924?...84.m1423.l2649

Attachment 48143498

As with the headlight halos, the first thing I did was put a drop of 5 minute epoxy over where the 2 wires attach the the back of the circuit board to make it stronger. It seemed like the wires could break off if they were moved around too much.

They fit perfectly into the tail light. When I energized it, I wasn't happy with the amount of light bleeding into the tail light from the halo, I wanted as much of the light directed straight out the tail light as possible. I also wanted to get a very distinct ring of light. What I ended up doing was using 1/4" masking tape to mask the top of the ring where the LEDs are, and then painting the rest of the halo black. This worked to stop the light from bleeding into the tail light, and gave me a very defined ring of light.

Here it is painted:

Attachment 48143499

As with the headlights, I placed the halo ring inside the tail light lens, and "spot welded" it with 4 drops of Permatex clear silicone adhesive sealant. This is what I used:

http://www.permatex.com/products/pro...sealant-detail

The next day, I ran a continuous bead of the same silicone around the halo. Here is a pic of the finished product; in this pic of the back, you can also see the drop of epoxy on the wires:

Attachment 48143500

Next, I drilled a hole in the tail light housing, and used the same very small grommets I used inside the headlight housings to protect the wire as it passed through the hole.

Here is the hole and grommet in the tail light housing:

Attachment 48143501

I then extended the wires on each halo to make them all long enough the reach the license plate light in the middle. I wanted the halos to act as the running lights only, and not as turn or brake lights. I didn't want to hack into the tail light wiring to achieve this, so I came up with something else. I took the 1157 lamp and filed off the solder bump that is for the running lights, leaving the bump for the stop/turn lights. I then placed a piece if black electrical tape over the bump I filed down so it wouldn't make contact in the socket.

Here is the modded 1157 lamp:

Attachment 48143502

It worked perfect, and I didn't have to cut any tail light wires. I then installed the tail light lenses, and ran all the wires to the middle. I wired them into the wiring for the license plate light so the halos only come on with the running lights. Doing this meant I only had to cut into the license plate wiring.

After I had determined that the modded incandescent 1157 lamp would work properly, I swapped them out for similarly modded LED 1157 lamps. I used these really bright LEDs:

http://www.superbrightleds.com/morei...power-led/808/



And that's it!

Any questions, ask away! Hope this helps.