Running our Bush Hog bat wing today and felt a bump that wasn't just rough ground. When I looked back, the front part of the right wing hinge had dropped down about 2". It's a 1" diameter rod which before we bought the mower had evidently been broken and instead of replacing that pin, they had welded it.
Now the pin is either spatter welded or rust welded into the other part of the hinge. It should be about a foot long but there are two 6" pieces, both stuck. If worst comes to worst, we'll cut the hinges off and either make new ones and weld back or possibly can get the pins out once there's room to work.
I can't really complain too much. We bought the mower used about 10 years ago and aside from rebuilding lift cylinders, this is the first real repair. I can't say I'm really looking forward to it, though.