|Heavy Duty Axles designed for off-road use where an original; factory Axle may prematurely wear out or break due to extreme stress, and steep angles. Built with stronger components these Axles are 45 % stronger than the OEM replacement Axles and as with the OEM replacement product line, no modifications are necessary for installation. They are made from 42 chromium with a 20% increase in Axle diameter over a standard Axle and a 15% increase in CV joint size. They have a swing angle of 45 degrees. All internal components are precision machined to reduce friction and increase CV joint strength and durability.