Hey folks,
been noticing lately that my truck is starting to have the same sounds my girlfriends car had before we replaced the wheel bearings - an oscillating sound whenever I turn right, clears up when I turn left (kind of a 'wuh wuh wuh wuh' sound)

I have yet to jack the truck up and check the tires for play....anyway, I was hoping to find the part numbers so I could look up pricing. If anybody would know what to look for (I've never done em on an F150 before), I have a 2001 F150 SuperCrew XLT 4x4, 5.4 V8, w/ about 94k miles on it.

thanks.