I have tried everything you guys have advised to get this thing off. I used penatrating lube, liquid wrench followed by heating with a torch and more lube and many waks with the hammer. I also tried all of this with a pitman puller and stripped the threads on one rental puller and my Dad broke a borrowed puller. If anyone has anymore advise it would be greatly appreciated! My steering gearbox seal is shot and I need to get this arm off! Thanks.