Limited lifetime warranty! If your car has 64/68 Thunderbird or 67/68 Cougar taillight housings like the 67/68 California Specials and 67/68/69 Shelbys, or you have a cougar with a broken sequential system, this is the kit for you. LEDs last longer and look brighter and redder, and new white substrate improves light output. LEDs ( Light Emitting Diodes ) use less current than the standard Mustang incandescent bulbs, relieving stress on your alternator. There is no need to add additional wires or the drill and modify the lamp housing. The installation of these taillights is a snap. I'm not familiar with Vic's LED kit, but I can tell you Gary's kit is really spiffy.If you demand the very best - this is the kit - more LEDs and brighter performance than any on the market plus LED sequential operation up to 2-3X brighter than stock lamps! Exclusive 'Smart Signal' technology prevents unwanted sequencing during braking. It's really nice being able to see so well when backing up at night especially when you consider a 1970 fastback isn't known for rear visibility. I went to leave after dark and, when I put my Mustang into reverse, it was like I had headlights at the rear. I visited a friend who lives out in the woods where there are no outside lights. With those gigantic taillights and all those LEDs, nobody should miss my car when I hit the brakes or use my turn signal and that was my intent.įYI, the backup lights are also great. I don't think there's anything cheesy about it. Each PC board has three sets of LEDs one for each vertical area in the taillight. The rear taillights each get a very large PC board that easily fits right in. Gary's kit is great! I've been running it for over a year without any issues. (I don't recall the side markers LEDs being particularly expensive and they were easy to install.) So, yes, you do require the side marker lights for Gary's LED kit. The only modifications required were using the flashers Gary sent me and connecting two extra ground wires in the trunk.

The rear turn signals are sequential and everything actually was plug and play.

I have Gary's entire LED kit on my 1970 Mach 1. The flasher I use has a 70% duty cycle 'ON' time to allow enough time for the sequence of all three lights to complete.Ĭontact me at if you have any questions. The typical flasher has a 50% duty cycle which is fine for single bulb flashes. The TS-400 controller has circuitry to avoid false triggers from the running light circuit.įinally, both the turn signal and emergency flasher must be changed to an LED compatible flasher. The sequential controller must be designed to handle the side marker feedback voltage noted above. The solution was to add internal isolation diodes to avoid the feedback. When multiple bulbs are used together, the running light signal will feedback and turn on the turn signal section of another bulb prematurely. The other issue when using LEDs in sequential applications, is that many of the 1157 LEDs on the market have the brake/turn signal high intensity bulb section separated from the low intensity running light function only by a resistor. This is available in the side marker adapter kit. To solve this problem, I designed a circuit that isolates the side marker light grounds so that non-bidirectional LEDs can be used and avoids the feedback problem yet retains the original functionality. This circuit configuration also means that the side marker LEDs must be bi-directional. When the front bulbs are converted to LED, the running light current from the original side marker lights is sufficient to turn on the front LED bulb, therefore the need to convert the side marker bulbs to LED too. However, when the headlights or running lights are on, the side marker bulbs flash opposite of the turn signals. This feature that causes the side marker bulb to flash in unison with the turn signals. The side marker lights are grounded through the filaments of the front turn signal bulb. The 1970-71 Ford turn signal system is wired quite uniquely which creates a challenge when converting to LED bulbs.

* 1 D0WY-15A434-LSM side marker adapter kit (includes LED side marker bulbs) * 2 WCCC1157Y 'Plasma' yellow front turn signal bulbs If you want to convert the front bulbs to LED: * wire to connect the controller to the bulbs * 4 additional rear tail light sockets & appropriate bezel * 6 WCCC1157R 'Plasma' red tail light bulbs * 1 TS-400 LED controller kit (includes one flasher) However, this conversion can be done by following the turn signal wiring diagram of a 1970 Cougar. The short answer is that there is not a 'plug-and-play' sequential LED system available for a 1970 Mustang - that has non-sequencing brake lights (unlike the examples above). Thanks for the recommendation FE Aficionado!

Sequential taillight kits for mustangs