I have a 2004 4x4 ex with ABS, I swapped in 2007 axles from a f350 front and rear and ended up with a solid abs light on. The old sensors had different plugs so I just swapped my old sensors into the new axles. My speedometer works fine with no jumps and what not. The ABS light is always on, no delay as it starts rolling. I am wondering if the tone ring is different on the newer axle than the older one. Any chance unplugging and plugging threw a code in the ABS brain? I was hoping it was just a change to the plug and not a different type of sensor. I do not have a fancy ABS scanner so any thoughts comments would be greatly appreciated. Looking for resident ABS experts!