PTO shaft, gearbox with freewheel, gearbox with oil cooling system, transmission with belts in Poly-Chain® Carbon, hydraulic hood, forged and hardened interchangeable counter-blades, third row of interchangeable forged and hardened counter-blades, inner anti wear clad plates FCP, adjustable skids, adjustable extended 3 point linkage, enclosed machine body, centralized greasing hub, hydraulic top link, hydraulic clutch transmission, hydraulic hoses integrated in the frame, Z style self ranging system of the PTO drive shaft/gearbox, cylinder protection,, inside lateral protection, dual row protection chains