ok, so I finally got the car out of storage today, but I need some help. I am trying to remove the battery, but the clamp bolt backed out only half the way and I can't get it to budge. I hate to torque on it more for fear of snaping the bolt. any ideas?

 

Go to a chevy dealer and get some heat valve penatrate spray the stuff works really good.Or brake fluid Works good to

 

Or you can try some PB blaster. That stuff is great!