Dan
Guest
We have a new high wide wire thresher concave assembly if that is what you wanted. I had a R50 with most of the ears brock off the gearbox this summer. I think it had threshed more rock than corn. Anyway I gutted the gearbox and tack welded ear into position after veeing out to get a complete weld to bottom of crack. I kept a wide area where I was welding preheated to about 300F and then ark welded with nickel rod. I would chip and pean weld alot after running a bead to insure the stress is relieved. So far so good. Good luck