How to Install Sequential Taillights

2 Taillight plugs are disconnected next. It doesn't matter whattype of plug your Mustang has. These leads will be cut to accommodatethe sequential turn-signal harness.

3 Taillamp assemblies are removed next. Each assembly is retainedwith four insulated tinnerman's nuts.

4 (above & below left) You'll need these foam gaskets that go betweenthe body and taillamp. The new sequential taillamps from Scott DrakeMustang Parts install like this. You can set up the wire leads eitherbefore or after you install the lamps.

5 Installed, the sequential taillamps look like this. The threelamps sequence to the left on the left side for a left-turn signal.Likewise, the right side sequences to the right with a right-turnsignal. They also sequence when you step on the brake pedal with theignition turned on. All six lamps are illuminated with the parking lampsor headlamps on.

6 The new lamp is secured the same way, with four insulatedtinnerman's nuts.

7 Each taillamp has a specific wiring color code because each isdifferent. On both sides, there are three red wires for the parkinglamps. The rest of the wires are color-coded in blue, white, and yellowfor brake and turn-signal lighting. There are three 1157 lamps pertaillamp assembly. Each 1157 lamp has two filaments: one dim and onebright. Parking lamps are the dim filament, while the brake and turnsignal lamps are the bright filament.

8 On the left side is a different combination of wire colorcodes, with the same trio of red parking-lamp wires. The brake andturn-signal wires are color-coded to prevent connecting the wiresincorrectly. On the left are green, gray, and orange for brake andturn-signal wires.

9 Inside each turn-signal module, located in the trunk area, aretwo rheostats that control the sequencing rate. You can speed it up orslow it down.