Congrats Clem, I was pretty sure it would come off. By the way that method of removal is one I learned at a Raybestos brake school back in the 70's not in someones back yard. The only drum I can ever remember using a puller on is an old VW rear where the splined hub is part of the drum that slips over the stub axle. Definitely not something to use on this type of drum. Now its on to the fun of pulling the hub off to check bearings and replace the seal.
