LED (light emitting diode) lighting for classic and late-model Mustangs has changed the way we use lighting in our cars. LEDs are cool-burning and virtually never have to be replaced. Install them and forget them. The technology has come so far, you can outfit your classic Mustang with 100-percent LED lighting and never have to change a light bulb again.
Mustang Project offers three basic LED taillight options for '67-'68 Mustangs. The standard MP-6004 kit comes with LED taillight modules and a special sequential flasher unit for $149.95. PN MP-6004-UB is also sequential but has a brighter batwing design for $169.95. And for those who aren't interested in the sequential feature, Mustang Project offers the non-sequential MP-6004-UB-NON kit for $129.95
For '68 California Specials, the MP-6000-UB Ultra Bright taillight kit ($269.95) offers bright LED lamps along with an easy-to-install module that plugs into the turn-signal-flasher plug under the dash.
Perhaps you're intimidated by new technology, yet there's nothing complicated about installing sequential LED taillights. Just plug them into your Mustang's taillight sockets, swap out the old-fashioned round Tungsol bimetallic flasher unit underdash with the special flasher module, and you're good to go.

1 This is Mustang Project's...

1 This is Mustang Project's standard MP-6004 Sequential Taillight Kit for '67-'68 Mustangs. The kit is complete and there's nothing else to buy. It installs in about an hour.

2 The MP-6004-UB Ultra Bright...

2 The MP-6004-UB Ultra Bright bat-wing design delivers more light and sequential operation. It's also offered as non-sequential as PN MP-6004-UB-NON.

3 For '67-'68 Mustangs, start...

3 For '67-'68 Mustangs, start the LED installation by removing the taillight sockets and #1157 bulbs.

4 There are six nuts on each...

4 There are six nuts on each taillight assembly to remove using a 3/8-inch-deep well socket.

5 The taillight escutcheons...

5 The taillight escutcheons and studs pull straight out, which releases the taillight housing inside the trunk. Now is a good time to replace the rubber gasket.

6 The lens is removed next...

6 The lens is removed next with a Phillips-head screwdriver.

7 The taillight housing returns...

7 The taillight housing returns to the trunk and gets a socket, as shown, because the LED assembly has to be installed in the housing.

8 This is how your Mustang...

8 This is how your Mustang Project LED assembly, standard or batwing, should be positioned once installed.

9 We recommend you don't...

9 We recommend you don't install the LED assembly while it's tied to the socket. Remove the tiny Phillips screw carefully and install the base.

10 Once the base is seated,...

10 Once the base is seated, reinstall the LED circuit board and tighten the screw. Don't overtighten. Use the tiny lock washer. You can hide the wires behind the circuit board.

11 Reassemble the lens and...

11 Reassemble the lens and foam, then reinstall the taillight escutcheons and housing, which takes about 10 minutes.

12 Behind the instrument...

12 Behind the instrument panel, install the special sequential module from Mustang Project. The red wire goes to the orange/white wire; the green wire goes to the blue wire. The black ground lead goes to a ground screw at your instrument panel.
13 The completed LED install yields brightness and a clear message. If you go with the batwing LED, visibility is even better and brighter.