Cage Made Up of 4340 Chromoly Material Thermoplastic Polyester Elastomer (TPEE) Boots 15% - 20% Increase in Diameter Compared to OEM Axles 10% - 15% Increase in CV Joint Size Compared to Regular Joints Wider Articulation Angles Boots Packed with High Load Molybdenum Grease Precision CNC Machined Direct OEM Replacement Can Fit 2", 3", 4" and 5" Bracket Lifts/Portal Gear Lifts/A-Arms of Particular Brands Backed by a 12 - Month Limited Warranty