stock shox

big pair of channel locks works well
just turn the section on the lower portion of the shock
there should be 5 settings turn it towards the back of the quad for stiffer settings and towards the front of the quad for softer
i rock mine all the way to the stiff side but im a fat bastard
also make sure you keep a good grip on the pliers , if u let em slip you'll know why
 
on my grizzly i just lifted it off the ground and took some vise grips and it went really easy they key is to get the weight off the shocks