Product review (5 stars): You don't need the special tools
Problem fixed and the job was very straightforward.  Find the video on youtube that shows step by step how to do this. You will probably need a smaller short handled hammer when working in the plastic tub. I had one and it helped me get a good hit on the bearing as I knocked it back in place. Remember to use the old bearings to help drive in the new ones to keep from damaging them. A little patience and rewatching the youtube video and this is a simple DIT job.