Drop Axle replacement lift design. Bolt on design with no additional parts or modification needed All tested alloy class 8.8 high strength hardware ((Proof load 85000psi/Yield Strength Min 92000psi/Tensile Strength 120000psi) Fits up to 22″ tires (offset wheels only) Includes front and rear parts Black powder coating finish Step by step installation instructions 4-year factory warranty provided by STEELENG GOLF CART CORP, free replacement if any quality issue