Specialized Products Demon Heavy Duty Rear Axle fits Honda Rancher/Rubicon/Foreman TRX 420/520 IRS (2015-2023) built with 4340 Chromoly inner cv cage Thermoplastic Polyester Elastomer Boots 10% - 15% Increase in CV Joint Size Compared to Regular Joints Wider Articulation Angles upto 450 degrees on inner and 45 on outer Double plunge design Precision CNC Machined Direct OEM Replacement for plug and play Backed by a 12 - Month Limited Warranty