What size bolt holds the blade
Join the My Tractor Forum and post in the John Deere threads.
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Look up your model at the john Deere Parts Catalogue web site
http://jdpc.deere.com/jdpc/servlet/c... geServlet_Alt
The example that I used D140 has a 5/8 " lock-nut securing the
blade - not a bolt.
John T.