The perfect solution for the IWE nightmare. There is nothing worse than having a good truck with persistent IWE noise/inefficiency. If you have any problem, save your time and order it. Order wheel hubs and replacement bolts and nuts, why are you here? Slightly more feedback/feel from the front tires but negligible fuel loss in mpg. Whenever I hear another F150 making that horrible IWE dropout noise, I offer them these removal kits. Two have already done the exchange and thanked me. One fought him for two years because of a hole in the air tank behind the battery. Buy lots of grease like Lucas Red and Tacky and make sure you have all the spare bolts and nuts you need for the two axles. I didn't do well and it cost me some time.