Yes, I use lots of PB Blaster and never seize on every bolt. That being said I may use some heat here too, only map gas though and patience. I have broken one of the bolts before on a subframe I took out of the car, had to drill it out and re-tap it. I do not want to go that route this time. Patience will have to be my helper when I get to it. It won't be this weekend, it is forecast to be too cold on Saturday and this will be in the blue sky garage.