You'll need an item called an "easy out". Drill a hole in the bolt, tap in the easy out and then slowly turn counter clockwise, she should come out. If this does not work you may need to add some HEAT.
Best of luck and as mentioned, we've ALL been there, this is just your initiation.

Jim


It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed