Front Diff Allen Bolt Spinning in Rubber Bushing

Hey guys,
I have a little situation here. I was trying to drop my diff yesterday, and the 12 mm Allen bolt in the back of the front diff did not loosen, but instead tore the rubber bushing and is now spinning inside the bushing. I was wondering if this has ever happened to anyone and if so, how did you end up getting it out? There are two bolts on the other side of the bushing, but they look impossible to take out unless the diff is out of the truck. Any help will be appreciated, thanks.

 

https://www.youtube.com/watch?v=w_gPiDvh9v4

at the 17 min mark

it's a bolt on a stud, so yours may be free already, just being stuck in the hole?