Hey everyone this is my first poast so bare with me. I have a 2004 f150 4x4. I am having problems with my 4x4, i have replaced the IWE Celonoide to stop the grinding noise coming from the front, but that didnt stop it. I dont know if i didnt replace it soon enough and it wrecked my hubs. I have checked my vacume lines and they seem to be good. so im not sure if i need to relace my hubs?

Thanks

Blue