Originally Posted by Oregon OEP
That is the difference. The offset is 5/16" different between the 2 blades. The 396-807 has the 5/16" offset like the newer 09081200 while the 396-740 blade has a zero offset. The 09081200 is the blade listed on the Gravely parts radar as the correct blade for the Pro Turn in question.
These are the 740's
2013 Gravely 460Z 29EFI
2011 Gravely 36GR
2008 Gravely 160Z
2004 Gravely 34Z
1998 Lazer Z HP 48 (old faithful)