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when i use the four wheel on my 2002 f250 the front hubs wine very bad. this just started after putting 33x 12.50 on. after i take it out of four wheel and drive about ten miles the noise goes away. they are the auto/locking,and the truck has the dial on the dash not the stick,plus auto trans if that helps. anybody have any help or ideas thanks
I would check the needle bearings. Guzzle has a nice write up on how to lube them up. Im on a work computer and dont have anything saved on here. I will add the site to it when I get a chance unless someone has it handy.
Just replaced one side of my needle bearings just last weekend. It was more of a whistle than a hum but once I replaced it and repacked everything, it went away. I have to do the other side as a maintenance item.