Thanks for the info...My relief valves are automatic.
Pulled the fenders/seat off and couldn't take the snap ring off because the pliers I have are too big. Will get some smaller ones and try again tomorrow. The first link below shows the plow hooked up and the lift works well. the second link shows the slop on the brackets and the trunnion wear. Hopefully this is my only problem and I can repair it and start using my tractor.
https://www.dropbox.com/s/6nx6p1z5dk...52154.mp4?dl=0
https://www.dropbox.com/s/6pxtqsdxyp...11508.mp4?dl=0