All mowers are equipped with Heavy Duty 540 RPM 90 H.P. Gearboxes with 2" Output Shafts, Round Blade Carrier, Shielded "Shock Adsorber Type" Drive Shaft with Extra Heavy Duty Slip Clutch, Rubber Shielding (front and rear), Replaceable Skid Shoes, Sturdy 7 ga Steel Deck with 1/4" sides. (For Lift type only 2 Laminated Tail Wheels, Heavy Duty Hitch.)