So your taking off the stock leafs and thats where your stuck? Is it stuck on the threads in the bolt, or in the bushing?
A) stuck on threads
I hate to force things, I was always told 'if it won't go on take it off, it it won't come off put it on'
Silly as it sounds maybe putting it back on and making sure its clean and the threads aren't stripped, if they are you'd either have to force it or cut it there I guess.
B) in bushing
If you can get a smaller bolt into the bushing and tap on it to push the other one out I would think that may work.
I am as newbie as you can get on here, so this is what my limited knowledge could come up with, hope it helps though.