Pulling out a stuck grain trailer

The fully loaded grain trailer got stuck in a wet spot in the field. The guy driving had unsucessfully tried getting it out with the NH 8360. Now we are using the TG285 and the old Ford to get it out. Please, before complaining about not using diff locks on the TG, there was a problem with the transmission so we were unable to engage them. That is why some wheels are stationary while others are spinning at the middle of the clip.