Rear Bearings

Hope I'm not in over my head here. 94 Cherokee Sport, 4.0 L, 4WD, Auto. One of rear tires can be easily wiggled and have been told this is the bearings gone out. There is also a shimmy at Hwy speeds. I am changing shocks and bearings were only 16 bucks so I got'em. How hard are these to get out, heard this can be tough?

Any one need JEEP bezel?

I have faith in all of you.