I'm picking up my very first tractor Saturday, it's a 455. It has a 54" mower deck that has been welded/repaired. The owner told me that a 60" deck would be much better suited for the 455. So I did some searching and found this 60" mower deck. But the person selling the mower deck says he doesn't know what tractor it came off of. He also says he can't read the serial number. I'm wondering if anyone here could possibly identify this and let me know if this will or will not fit a 1998 John Deere 455?