John Deere 635 22’ Rock Cushion Disk, C-Springs, Spring Loaded Scrapers, Rear Hitch, Single Point Depth Control, 9" Spacing, Front Blades: 20.5", Rear Blades: 21", Middle Leveling Blade, Pintle Hitch, Tandem Axle (Main Frame) Single Wing Wheels, 11L-15 Tires, SN: N00635X000121