Wheel vibration

[mduark]

On a recent trip my 93 RRC developed a noticeable vibration while taking my foot off the gas and coasting at speeds of around 65 down to 55 or so. The vibration goes away by either applying the gas or breaking through those speeds. The previous owner installed an ARB locker in the front but everything else is stock. I suspect the problem is the wheel bearings. It has about 53K miles on it and I would assume they haven't been changed or repacked. If this sounds right, I'd like to replace the bearings tomorrow. Does anyone know the correct Timken part number so I don't have to rely on the local auto store to get it right? I have the spare seals for the job already.

Thanks,

Mark