Trail Gear Longfield 30 Spline Birfield/Axle Kit

Longfield FJ40 30-Spline Long Spline Super SetThe Longfield birfields are made out of 100% chromoly and are precision polishedto remove any imperfections that may cause stress risers. The Longfieldbirfield housing is made out of forged 4340 chromoly steel. The axle shafts arealso made out of 4340 chromoly steel. The internals of our Longfield birfieldsare made out of vacuum arc remelted 4340 chromoly steel and then dualheat-treated for superior strength.The longside axles have an extended spline for Land Cruiser OEM locker applications.The spline length on the diff side is 4.75in Long.Weunderstand that once you upgrade your axles, the next weak link is your hubgears, so we decided to include our Chromoly Inner and Outer Hub Gears andCreeper Drive Flanges at no additional cost! This will give you the confidencethat your front axle will stand up to any trail you wish to run, and will saveyou $365.40 over purchasing them separately.These partshave undergone years of extensive in-house and field testing. We are soconfident with the Longfield 30-Spline Long Spline Super Set that we areoffering this kit with our No Questions Asked Lifetime warranty. This warrantyhas no limitations and is not limited by the size of the tires on your rig.TheLongfield 30-spline Birfields allow up to 40 degrees of turning radius and havea consistent breaking point of 8900-9000 foot pounds of torque (all testingdata is based on internal testing at TGI). The Longfield 30-spline Birfields allow up to 40 degrees of turning radius and have a consistant breaking point of 8900-9000 foot pounds of torque (all testing data is based on internal testing at TGI).