Product review (4 stars): My washer no longer sounds like a helicopter and my wife doesn't miss the laundromat
I did this repair w/o the special tool suggested. I'm not saying YOU don't need it, but i made due with some punches, sockets, washers, bolts and ingenuity.  If you have ever done bearings/ball joints on a vehicle without the proper press tools, you can figure it out.  It looked much easier for the guys on youtube who had the specialty device, but it would also be easier to just pay someone to do it or replace the unit.
My washer no longer sounds like a helicopter and my wife doesn't miss the laundromat.