replacing xls ute rear shocks

[menphus]

Gday everyone,
I know this is proberly a noob question but is there a trick to removing the rear shocks in an 2000 v8 au xls Ute for the life.of me I cannot get the top bolt off. I ended up removing the whole bracket to get it out but I still can't remove the bolt. Tried wd40 ect nothing. Any help would be greatly appreciated

Thanks in advance Dan