Looking into picking up a 70 gasser this winter to supplement my stable of old tractors. Would like to use on 9 ft haybine, 4 row cultivator, and 3-14 or 16 plow. Have two 60s and 2 As and would like to replace one of each with a 70 and a 620/30--the independent pto and live hydraulics are important to me because we have 50+ acres of hay out and its impractical to run a haybine without these features. Now I realize the 70 is geared higher than the 60, has the two stick type shifting quadrant, and has a greater displacement. Are there any other major mechanical differences btwn the two that might pose reliability issues or are they essentially just two sizes of the same tractor? Thanks,
Pete
Pete