The U-joints on your drive shaft will eventually wear out if you do not fix it, more likely the single rear one assuming you have a SYE.

Putting a bottle jack in the front of the differential housing should be enough to angle it correctly, then its just a matter of fighting the bolts into place.

 

So finally made some progress on the vibration hunt. After driving 300 miles to Vermont to go camping, I went to check my wheel spacers (new wheels with back spacing at home) I had managed to put all 4 wheels up off the ground. We'll with my father watching we found that my rear caliper was not releasing correctly, causing it to grab the rotor more. This can cause friction which may warp the rotor. It's a place to start anyways! Wish me luck. I'm guna be pissed if I thought it was the lift this whole time and it ended up not being... Owell