When the stock engine went away, the stock gauges had to go too. Hummel modified the trucks wiring harness and removed the no-longer-needed ECM. He replaced the stock gauges with VDO units. “I had to remove some supports, reroute wiring, and melt ductwork to get them to fit due to gauge depth. The speedo cable is thicker due to bends and a hole is drilled through the steering column to help routing before going to a normal cable,” he says. The LED lights are indicators for the turn signals, high-beams, and forward-facing lights.