Longfield 24 Spline Birfield Axle Kit (FJ 80)
Longfield™ FJ80 Gun Drilled 24-Spline Super Set
The Longfield™ FJ80 Gun Drilled 24-Spline Birfields are made out of 100% chromoly and are precision polished to remove any imperfections that may cause stress risers. The internals of the birfield are also made from 4340 chromoly and are dual heat treated for superior strength. The birfield has a M8 grease zerk at the end of the stub shaft and is gun drilled through the center of the birfield to allow for grease to pass through the zerk fitting and into the internals. This will save you precious time by eliminating the need to disassemble your axle just to service your birfields.
The FJ80 Gun Drilled 24-Spline Birfields also have a shallow relief near the splines on the stub shaft known as a Machined Spline Saver. The Machined Spline Saver eliminates stress concentrations caused by grooving from the tool that makes the splines on the stub shaft. The stress concentration from the spline groove is a common failure point on birfield stub shafts. The stub shaft of the Birfield has dual snap ring grooves to accommodate FJ80s with short and long drive flanges.
The axle shafts are also made out of 4340 chromoly
Included in this kit is a set of new FJ80 ABS Tone Rings. This will allow you to install the Longfield™ FJ80 Gun Drilled 24-Spline Super Set on both ABS and Non-ABS FJ80 applications. We also include extended dust caps to allow you to use these birfields on 1990-1993 FJ80 models that use short drive flanges. No other kit on the market can compare.
Note: 1990-1993 models with short drive flanges will need to obtain the taller drive flanges (Toyota P/N 43421-60040) to be able to reuse the OEM grease caps or get a set of our FJ80 Extended Dust Caps.
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- Made out of 100% chromoly and are precision polished to remove any imperfections that may cause stress risers
- Birfield housing is made out of forged 4340 chromoly steel
- Birfield stub shaft has dual snap ring grooves to accommodate FJ80s with short and long drive flanges
- Internals of our Longfield™ birfields are made out of 4340 chromoly steel and then dual heat-treated for superior strength
- Machined spline saver to eliminate stress concentrations from the spline groove
- Gun drilled to create grease passage through the birfield
- M8 grease zerk at the end of stub shaft for easy greasing of the birfield
- Includes FJ80 ABS Tone Ring
- Includes extended drive flange dust caps
- The axle shafts are also made out of 4340 chromoly steel
- 1990-1997 Toyota Land Cruiser FJ80**
- 1995-1997 Lexus LX 450
** 1990-1993 models with short drive flanges will need to obtain the taller drive flanges (Toyota P/N 43421-60040) to be able to reuse the OEM grease caps.
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.
Trail-Gear Inc. warranty does not cover, and Trail-Gear Inc. shall not be liable for, any undertaking, representation, or agreements made by dealers or other third parties selling Trail-Gear products, except where such agreements are within the provisions of this Warranty.
Specifically excluded from this warranty are failures caused by lack of maintenance, misuse, negligence, modification, abuse, improper application, crash damage, installation or operation, or failures caused by unauthorized service or use of unauthorized parts.
Additionally excluded from this warranty are parts which are subject to normal wear and tear, such as bushings, fluids, hoses, gaskets, belts, etc. Products not manufactured by Trail-Gear Inc. are excluded from any warranty and shall be handled with the original manufacturer.
All parts used in a competitive racing environment are excluded from this warranty. If, after inspection, a part returned, under any warranty, is deemed to be ineligible for warranty repair or replacement, the part may be repaired or replaced for a discounted cost. Return shipping charges will apply. Any part for which a warranty replacement is sought must be returned to Trail-Gear Inc. before any replacement items can be shipped. All replacement parts shipped before the suspect part has been received and evaluated by Trail-Gear, MUST BE PAID IN FULL. In such a case, after the suspect part has been received and approved for a warranty replacement, the purchase price for the replacement will be refunded.
- Please contact Trail-Gear Inc. at 559-252-4950 or email [email protected] prior to returning any product under warranty to verify that warranty is still in effect.
- Products must be shipped back to Trail-Gear Inc. at the expense of the customer.
- ATTN: WARRANTY
- 5356 E. Pine Avenue
- Fresno, Ca 93727.
Ship all products to:
- Please place a clearly marked copy of the original invoice on the outside of the package.
- Please include a short note stating the problem you are experiencing.
If any of the above mentioned policy is not met, the package will be refused or warranty claim denied. By completing the steps above, this will ensure faster processing of your claim so that Trail-Gear can get your product back to you as quickly as possible. All warranties are generally processed within 2-3 business days of Trail-Gear receiving the parts from you. Additional delays may be incurred if product needs additional testing or repairing.
If you are an international customer, please email the warranty department at [email protected] to receive further instruction. International customers may have the option to field destroy an approved warranty to avoid costly return shipping. In this case, any shipping charges for replacement parts will be at the expense of the customer.