Micko, ok as long as you want to do it that is fine. Dumb manufacturer that does this stupidity, but I guess it is not their problem so they don't care. Just get a blade carrier and boss off a rover or whatever, anybody repairing mowers will have a stack of them under the bench. Just make sure the shaft is 7/8th inch, unlikely to be one inch but I came across 2 in the same day a few weeks ago. You can try heat but unless you have oxy you will probably find that you have to get it very hot and that then gets heat travelling up the shaft and may damage the bottom seal. Another problem with trying to pull it with a 3 jaw, unless you cut the carrier , the jaws are pulling from too far away from the shaft to have much effect. Some are extremely tight