2004 chevy trailblazer_lt
So, I decided to change my differential fluid the other day. I loosened all 10 bolts, let the fluid drain out, and then went back to remove the bolts so I could check out the gears and clean the magnet. Well, sure enough, the last bolt I removed, the one at the very top, broke off. I've tried using "easy-out" things, but I don't think they're going to get it (this thing was HARD to turn, and I've been trying for 2 days and it hasn't moved). What are my other options? I really need to take this 2k miles the day after Christmas...