2007 John Deere 637 Wheatland Disk, 37'10" Working Width, 9" Spacing, Hydraulic Leveling, 23.5” Front Blades, 23.25” Rear Blades, Scrapers, Three Bar Coil Tine Harrow, Walking Tandems, 12.5L-15 Tires, Adjustable Wing Gauge Wheels, Single Tab Hitch, Rear Hitch, Rear Hydraulic Outlets, Safety Chains, Jack, SN: N00637X010278