This grain bin wear out problem, seems to be very common on Gleaner machines. Grain left in the bin and moisture gets in during the winter and rots the metal, or unloading grain simply wears the metal away. Same problem in our l2, fix putting in a piece of metal and pop rivets sounds simple, but in reality it is a b--ch to do. Mig welder used after pop riveting the patch in, is kind of dangerous, but necessary to complete the job!