 It seems to do it worse after a rain, and it sits overnight during a rain next morning. Oh, well, if it does that, it could definitely be a joint, a front axle joint, or a ball joint. Super duties with that many miles, you more than likely are ready to rebuild some stuff in the front end. Yeah, the U-joints in the end of those axles, they will bind up, and if they're in the right position, yeah, they'll be really tough to turn or straighten out.