Look for dry bearings between the spindles and the front axle. Either the kingpin bushings are making the noise, or more likely the ball bearings that carry the vehicle weigh are worn out or corroded.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!