simple tractors heavy made last series that were made in brazil I think, some of the earier series brazillian masseys had quality control issues 400/500 series.i had a 481 put 3000 hrs on it without any major problems the one thing that was most aggravating was if you would shut it off on a hill the hydraulic system would lose its prime and wouldn't steer and remotes wouldn't work took awhile to prime back up.i often wondered how they could take something as good as the ferguson hydraulic system that was so good on the 300 series and the 4200/4300 series and screw it up.the 2600 hd series may have not had these issues I never operated one.