Back in the day we used to call the JD 70D Big John, the 520 was Little John, the 46 A was the old A, the 48 A was the new A, the 8N Ford was The Ford, the G Allis Chalmers was Allie or the G, Once dad got a JD 4010 yep the 4010. I was raised by JD but made my living wrenching on MM and MF so today I have a TO35 call it Fergie and the 14- Yep just the 14, the 245 yep the 245. But over the years when working on some machines they get those "special" names that are supposed to be mentioned here. Have a great day.