Bolt removal help needed

[Stevo302]

Any ideas on how to pull this bolt out? It's stuck in the bush. Turns but only just. I can't get much behind it.
Thanks.

[Stevo302]

Managed to modify a hacksaw blade to fit in my jig saw. Then I cut it off. Had the same problem the other side. Off to see Nigel Reuben at some point to help me out with other parts. Things at the rear are getting difficult and soon to be expensive.