I've been soaking them in PB blaster, not twice a day but I've done it. I'm not worried about breaking a bolt, I'll be replacing them with cam bolts anyway. I'm worried about messing up the bolts so bad I can't even get the nut back on or breaking the rubber in the bushing and still not being able to get it out. Then I'm down to a motorcycle or garden tractor, neither of which will get me to work.