Misalignment
 

Ok check this i've noticed a slight vibration that just caught my attention. So I got my wheels balanced. I had my wheels aligned about 3 months ago so I doubt its that. Now could it be my driveshaft. I've heard some people have problems with the driveshaft how do I go about balancing it.....if possible.

Make sure the bolts are tight and its not bent.

I doubt its bent but I will check to see if the bolts are tight in the morning

What speed is the vibration at and is it felt in the steering wheel or in the seat??

little bit of both more noticable on the steering wheel. Most noticable when from like 25-30 mph. and gets a bit more winding down from that

Tires could be cupping did they check to make sure all the tires were good??

All tires are good to my knowledge I have had only 2 patches done due to nails. But they checked out ok

If your tires are all good and the balance is good as well, id check to make sure the driveshaft is balanced, not bent or dented, the u-joints are good, and that everthings tightened down to proper torque specs.

This may sound dumb but we had someone come in for a vibration problem and it turned out that they just didnt torque down the wheels after they put the new ones on....

I didnt think about the U-joints.....ehh i'll take a look tomorrow