I hauled it to the now closed dealership. He said his mechanic had quit last Friday, so I hauled it back home. Got the part and am in the process of trying to install it myself. Got the broken part out, but I don't think the new one is going to go in without splitting the tractor. Will know for sure after I fiddle around with it a little more tomorrow.
I am confident someone replace this part after doing a little grinding on it and it didn't seem to compromise the integrity of the part. Thinking it was on a 2000. Yanmar Tractor Parts: HI-LO SHIFT LEVER _
Maybe someone can fine and post that thread for you.