Call tuna toms reel repair in ludington michigan.
http://stores.tunasreeltroubles.com/StoreFront.bok
Spool assembly is 6.99 each for the 15s
http://stores.tunasreeltroubles.com/...BLY/Detail.bok

Takes about 5 minutes to replace it. Take off the side cover without the reel handle slide out the old one slide the new one in put the cover back on and fill with line.