Wheel Bearing Issue?

[chevyman95]

I have an 85 K10 4" lift on 33s. I noticed my right front tire moves in and out when you push it back and forth. The ball joints look fine so I figured it might be the wheel bearing even though it isn't making any noise. It looks like there are several bearings in the wheel/hub/spindle assembly. I can't find a kit to replace them all and should I be replacing them all? I don't know which one might be causing the issue. Anyone have any advice on where to buy the bearing kit and which ones to replace? Thanks