1989 was a great year for high horse power tractors. The 1980's was a tough time in farming and many top end tractor lines merged or were retired. By the close of the 1980's the farm economy was recovering and new big tractors were going into production. This video share the top end horse power tractors produced in 1989 from Caterpillar Challenger, Case International, FORD Versatile, John Deere and Massey Ferguson.