Wide articulation angles and an increase in plunge prevents the axle from binding Can fit 2", 3", 4" and 5" bracket lifts/portal gear lifts/a-arms of particular brands 10% - 15% increase in CV joint size compared to regular joints 15% - 20% increase in diameter compared to OEM axles Dual heat treated high-strength chromoly steel shafts Thermoplastic polyester elastomer (TPEE) boots Boots packed with high-load molybdenum grease Inner cage made up of 4340 chromoly material Precision CNC machined Direct OE replacement. AXLE KIT HD COMPLETE