This is great news... just for clarity, is the QCC P/N you have the kit for the 425/445/455 or the X485 - X749 series? I can't seem to tell from drawing. Have you ordered one to verify?AM132338 from Deere $258.14 online
QCC has detent kit, 156B8516, $61.75 net each, 8 week delivery
Great investigation. It appears the springs have a P/N as well. I wonder if they would sell some quantity of those?