my rear tires sway while driving, like a in and outward shake, this mornin at the shop i jacked up the rear end and checked the lugs, after checkin all the tightness, i pulled on the rim/tire outwards, and the whole axle moved like an 1/8 of an inch, both sides, identical, i had a few ranger friends say its do to the c-clamp, they all have play, is this true, or is it time to replace bearings within the axle?

 

Its c clip and yes it has play.

 

can the tire be unbalanced causing the dramatic shake?

 

Yes an unbalanced tire could shake the truck if its really bad. You could have a bent axle shaft. Mine is bent a bit but it doesn't shake my truck. You can see it if you pay attention when driving behind me.