I went so far as to completely disassemble my SW into pieces and replaced all the rivets that hold it together. I didn't have any cracks in my SW but to repair them would be easier to have it out of the boat. My SW is different but besides the attachments to the transom there's just 3 rivets on each gunnel after you remove the rub rails. The rub rails have bolts that hold them on, you just have to remove enough of the bolts to allow the SW to come out.