ok...my friends and i made it a saturday project to put on my ground control coilovers. fronts went on in about 30 min., but the backs are given me a hard time. The bolt that holds the bottom of the strut to everything else is welded at one side and WILL NOT BUDGE!

i dont wanna mess it up and hafta be car less untill i get new shocks in...that'd suck. i need that bolt undone in order to get the strut out and finish w/ the new springs...any ideas?
thnx