If I'm not mistaken, the 7040 ships with 16.9-30 tires whereas the 6040 defaults with 16.9-28. Slightly shorter. The 6040 does not come with a limited slip front axle either.
Good point about the limit slip, I hadn't thought about that difference.
Me too and I REALLY like the limited slip differential.
Me too, I RARELY use my rear diff lock. In most cases the tractor will move with one front tire in the air without using the diff lock.
Some people used Barlow's or Messicks, but I don't know if it is practical for you.
Just some thoughts.
I have two that just came in. Thats a really long drive though.