Ok now, I noticed vibration when driving on the highway at about 60 to 70 MPH. Got home and noticed that the drive shaft was bent. So went to the junk yard found the same drive shaft as mine that wasnt bent and swaped them out. Drove it for a couple of days then i noticed the rear was "hopping" in away i guess at like 55 to 65 MPH. I was wondering if the U-joints are bad or the drive shaft needs to be balanced so that it will stop "hopping".

 

That's weird and I would check the u joints an easy way to check them is if u can't tuch the drive shaft near the u joint becase its to hot then its shot

 

Sorry for the late reply to inform everyone on my truck. Just found another drive shaft at the junk yard and took it to get rebalenced. Now there is no shaking or anything. Thanks to everyone that posted on my thread I appreciate the advice and help!