<Li> The new compact 40.4 hp 4105 was in John Deere dealer lots in late December 2007 . </Li> <Ul> <Li> In early 2008 the company introduced another compact diesel tractor the 27 hp 3005 which is essentially an updated John Deere 870 . Followed by the new 31 engine 23.5 PTO - hp 2720 later in the year . </Li> </Ul> <Li> In early 2008 the company introduced another compact diesel tractor the 27 hp 3005 which is essentially an updated John Deere 870 . Followed by the new 31 engine 23.5 PTO - hp 2720 later in the year . </Li> <P> On the back of the John Deere publication The Furrow (Summer 2008) is a signup for new equipment . The company had another dealer meeting in late July 2008 to introduce many new utility tractors . But the real announcement came with John Deere introduced a new Worldwide Numbering Scheme for the Entire Line up of Compact and AG Tractors . </P>

What do the numbers mean on john deere tractors