Fixing Split Yoke on Drive shaft, how much?

Started getting cab vibration when moving 60mph and up. The vibration goes for like 10-15 sec then stops for about 10sec and then everything repeats. When i put more gas while it vibrates then vibration is even worst. I checked drive shaft and the middle one that connects to diffr. has split yoke that moves back and forth (depending on the angle) and when i push shaft up and down it has play to the point where it bangs (exactly where the split yoke is, under the cover). So i want to know if its possible to fix it and how much it would coast? thanks

 

well, i was thinking about removing it and taking it to the shop myself, but now i am thinking, is it really that hard to remove yoke from drive shaft?