Need help with my 2003 ram 4x4

Hey guys Im getting a clicking sound that is clicking at the same frequency as the tire rotation I believe so Im wondering what everyone thinks it is? the front driveshaft u-joints look fine, but I did notice I can turn the front driveshaft roughly a 1/2 inch in either direction by hand, is this normal? and I also noticed that when I turn it, as the driveshaft stops, it makes a solid click sound like the sound while driving. Whats causing this? Are the gears in the front axle bad? low on gear oil? anything else? I need to know ASAP so I can fix it before it develops into something worse

Mine did that once when i had my 4x4, ended up being the wheel hub. Replaced it, and the noise went away.


Taylo

something stuck in the tire?? rock or nail?

Na tires are clean, Thanks Taylor, how much of a pain in the ass was it to replace the hub and how expensive?