Product review (4 stars): Just buy a new one if you have to remove the old one, it'll save you from the doggy house!
If you need to remove the blower wheel from your dryer, just buy another one because there is a good chance the original will crack when you try to remove it. Then you'll need to tell your wife that the dryer will be out of commission for a little while longer. (when she wanted a NEW one in the first place......)

The motor went on my dryer and I just ordered a new blower wheel and a motor, remembering how many crack when you try and remove them. (from my appliance repair guy days)

Also remember that this wheel has left-handed threads!