Longfield™ FJ40 30-Spline Long Spline Super Set
The Longfield™ birfields are made out of 100% chromoly and are precision polished to remove any imperfections that may cause stress risers. The Longfield™ birfield housing is made out of forged 4340 chromoly steel. The axle shafts are also made out of 4340 chromoly steel. The internals of our Longfield™ birfields are made out of vacuum arc remelted 4340 chromoly steel and then dual heat-treated for superior strength.
The long side axles have an extended spline for Land Cruiser OEM locker applications. The spline length on the diff side is 4.75" Long.
We understand that once you upgrade your axles, the next weak link is your hub gears, so we decided to include our Chromoly Inner and Outer Hub Gears and Creeper Drive Flanges at no additional cost! This will give you the confidence that your front axle will stand up to any trail you wish to run, and will save you $365.40 over purchasing them separately.
These parts have undergone years of extensive in-house and field testing. We are so confident with the Longfield™ 30-Spline Long Spline Super Set that we are offering this kit with our No Questions Asked Lifetime warranty. This warranty has no limitations and is not limited by the size of the tires on your rig.
The Longfield 30-spline Birfields allow up to 40 degrees of turning radius and have a consistent breaking point of 8900-9000 foot pounds of torque (all testing data 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).
All products carry our 12 Month Limited Warranty. All warranties are limited to the original purchaser and are not transferable to subsequent owners of the product. The warranty period begins on the purchase date. Trail-Gear warrants that it will repair or replace, free of charge, any eligible product which, under normal conditions of use and service, proves to be defective in materials or workmanship. This warranty does not cover any labor costs incurred in diagnosis of defects, removal or reinstallation of a product, nor does it cover any other consequential expenses.