I've been trying (to no avail) to get the pitman arm off af a power steering box I bought that I want to restore to use on my car. I broke my pitman arm puller trying to get it off. It wouldn't budge by hand so I put an impact on it and that's when the puller broke. So I bought a new puller yesterday and I still can't get it to budge. I sprayed PB Blaster on the splines and let it sit overnight but it hasn't helped. Part of the problem is the steering box is not attached to a k-frame so I can't get a lot of leverage on it but at the present time I don't have the option of mounting it to a k-frame. I don't have a large enough vise to clamp it in either. Any suggestions?