Manufactured in the U.S. using only high-strength chromoly materials, RCV Performance Ultimate 30 spline CV Axle set simply replaces your weak Toyota axle shafts with a new high-strength design. The factory axles were designed with 30 splines at the differential, and neck down to 27 Spline at the CV creating a common failure point. This axle set upgrades the weak 27 splines at the CV to a 300M 30 spline race eliminating this issue. Tests prove Ultimate CV Axles to be twice as strong as OEM shafts, and they're just as tough at a straight angle as they are at extreme angles. Even if you have big tires and big power there are no worries. Ultimate CV Axles are low maintenance and operate with a smoothness you can feel - whether off road or on the street. And we back it all with a "No Questions Asked" limited lifetime warranty. Axle set includes right and left inner axle shafts -2 pregreased CV joints. Black oxide coating is standard, optional nickel plating is available for extra corrosion resistance in salty environments. We can accommodate custom length inner shafts - contact us for details -pricing, or use our Custom Axle Configuration Form.For a limited time, your axle kit will come with a free hub gear set included! 4340 Replacement Inner Hub Gear Set Applications:- '76-'84 Toyota Land Cruiser FJ40, FJ45, FJ55, BJ40, BJ41, BJ43, BJ44, BJ45, BJ47, HJ45, HJ47- '84-'90 Toyota Land Cruiser BJ70, BJ71, BJ73, BJ74, BJ75, FJ70, FJ73, FJ75, HJ75Application:OEM/RCV Inner Spline:OEM/RCV Outer Spline:OEM CV Inner Spline:RCV CV Inner Spline:OEM/RCV Right Inner Axle Length:OEM/RCV Left Inner Axle Length:Boot TechnologyToyota Land Cruiser 40/55 Series ('76-'84) -70 Series ('84-'89). Includes right and left 4340 inner axles -2 4340 CV joints30302730 (300M Race)17.13"28.94"