Tommy,
I do have a two piece driveshaft. So I crawled under today and checked the bearing and there was excessive play in it. So I've ordered a new one. If the part arrives I'll get to it over the weekend and will let you know. Thanks for you thought!
Jeffrey,
As I said in my second post, "The wheel bearings have been replaced/inspected recently and are in good shape". So I appreciate your input and have already done the cleaning and inspection as you suggest. Matt had suggested I check their tightness just for good measure because he had had that problem in the past.
Thanks to all,
James