What we found is that when you turn sharp... and the sound is a lump, lump, lump where it wants to pull the wheel... . that's been ujoints for us... when its a constant rattle in a turn its a bearing.....
The key to doing front u-joints is the need to remove the front bearings... and if you have those apart there is a thread on this board to remove the abs sensor and grease the bearings... .
We finally had to build a large puller to get the bearing housing out of the frame, and later we power wire brushed all the metal to metal contacts and used a lot of never seize when we put it back together... .
I posted to a thread for another TDR member and didn't have a photo of the 2WD hub he needed but posted the photo of the 4WD hub... if you wish the part number and a photo let me know as I have both... .
Hope this helps. .