qapla

Good Evening, Depending on the flatbed model you probably won't be using a aftermarket housing but whatever light locations that have been built into the flatbed model. You won't run into any issues with using LEDs. The Titan doesn't actually throw a code as you sometimes see with the Europeans. The only ill effect you will notice is a Hyper blink symptom if you use an LED for the Blinker bulb. Simple fix by wiring a resistor in place for the Blinker bulb. The Running/Brake bulb won't have an issue and the Reverse bulb will not have any issues by switching. Yes, there are LED fogs in that size. However they do not perform like the stock halogen bulbs or possibly the HID upgrade. They are more for acting as a Daytime Running Light (DRL) or simply a matching color output for an HID low beam. Feel free to let me know of any other questions and I will help out if I can. Would love to see the Titan with a flatbed when you are all finished. That would be something new. Jason