The mower deck I got with my <very used 1982 yr model JD 317> yard tractor has an advanced case of cancer , to the point that I wouldn't dare spin upthe blades for fear that one spindle would come loose and hurt me . Yesterday I bought another deck and it doesn't have the same cancer problems , but it does have some cracks at the mount points from metal fatigue . Since these areas of the original deck are in much better shape I'm considering doing some surgery . I don't plant to use this mower as hard as it has been , but I also don't want to have recurring fatigue cracks . The worst one is at the front mount point , and also looks to be the easiest to cut out and replace . This would also replace the mount brackets with the much-better ones from the original , and won't really be any more work that repairing the cracks and straightening brackets . The rear mount cracks I'm not worried about , I'll be cutting the mounts off and replacing them with the originals since the newer mount is different . Same size deck , just a different year model . So do I need to be concerned with it cracking again ? I only want to do this once , that thing is going to be a pain to R&R , and I can't access that area with it mounted . FWIW , it's a 46" mower deck with 3 blades , which I plan to modify to be like the blades on brush hogs , with the blades pivot mounted on discs so if I hit something it won't tear things up <as bad> . I'm not mowing the green at the 15th hole , I'm keeping the brush and weeds knocked down in a small orchard and other selected areas around our clearing in the woods .