Might want to re-think the heat on the bearing thing the aluminum wheel can easily be distorted when hot.If the tire is already off then it is simple. There are C clips holding the bearings in. there is a C clip tool that sqeezes them together to get it out of the groove. Once those are off you can pull the bearings out with a little heat. If you do not have the tools to do the job, yes, for $30 it can be done in about 5 minutes.