Front Driveshaft Help

A couple of days ago I was getting super bad vibes from what felt like under my feet, so I checked front DS and as it would spin the + joint connecter thing on the axle side, slid up and down and would clunk pretty good. I took out the DS and a bunch of small cylinder bearings? fell out. So the question is, do I just need to replace this part? and what is it called?

U-Joint

its called a universal joint or u-joint for short. all you need to do is replace it.

thanks that what I though it was called, but better safe then sorry