John Deere Spindle Kit GT255 GX325 GX345 LT180 LX 280 X320 X530 Z465 AM144377 INCLUDES SPINDLE, DECK RING AND 4 LOCKING NUTS HEAVY DUTY SPINDLE WITH GREASE FITTING Heavy Duty 7 gauge 3/16" steel,John Deere Deck spindle reinforcement ring GT255 GX325 GX345 LT180 LX 280 X320 X530 Z465 AM144377 42M, 48C, 54C and 62C decks