We have been all 8 row 36'' for the last 8+ years.  Picked up some additional land this year and was thinking about moving from two 8 row units to one 12 row. (Planting 8 row and picking with 6 row Pickers don't match up all the time even with green star)  What tractors are you guys pulling a 12 row ripper bedder with.  I know my 8330 and 8410  is not going to pull it but i can keep those to pull 12 row planter or field cultivator with.  Just trying to put a pen on paper.  Might not even make the switch.  Thanks in advance.