Great Plains 6548 Field Cultivator, Series Lll Floating Hitch, Walking Tandems Axles On Main Frame And Wings, Gauge Wheels In Front, 11L - 15 Tires On Main Frame, 9.5L - 15 Tires On Wings, 6 Rows Of Shanks, 2 Of The Rows Fitted With NH3 Knives, 4 Rows Of Sweep Shanks With 10" Sweeps, Raven NH3 Cold Flow System, With Solenoid Control Valves, John Deere Rate Controller, Approx. 7" Shank Spacing, Heavy Duty Tires On Center Section, 4 Rows Of Spike Tooth Harrow Teeth, SN: GP1247CC