What is the difference in a new deck? Can I just replace the three blade spindles and bearings.Zrock, welcome to the forum! For years I had some old decks on my older tractors and when I picked up the 318 it had a pretty new 48" replacement deck on it. Wow, a new deck is amazingly different for the 20 - 30 year old ones! Enjoy your machine and consider refurbing the deck. You will be glad you did!