Stubborn shock bolt

[ondgas]

I have a 08 crew cab frontier 2wd. I was trying to replace my shocks, jacked up the truck but could not get the lower shock bolt to break loose. I tried impact wrench, banging and soaking in PB Blaster. All I have is a bad back and some choice words. I compressed the spring with a spring compressor but I can not get the bolt loose. Is there some secret to this or something I am over looking? The truck is fairly new with no rust or corrosion. Help and thanks in advance.

[vancouverbc]

try leverage breaker bar , hit with hammer or red hot