Yeah some heat and a puller. Map gas will work better than propane as it gets hotter. I would heat it up quick and have the puller ready so you can heat and then pull.. Propane may work but it may take longer,, thus heating the bearing along with it.. Aluminum heats quicker than steel and will expand faster than the bearing material so some quick heat with the map gas will get the case expanding before the bearing.. Quick hot heat with map gas then yank.. Propane may work but I would go with map gas on this one.