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Longfield™ FJ80 Gun Drilled 30-Spline Super Set

by / 0 Comments / 154 View / July 31, 2015

The Longfield™ FJ80 Gun Drilled 30-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.

303249-1

The FJ80 Gun Drilled 30-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.

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The axle shafts are also made out of 4340 chromoly steel.

Included in this kit is a set of new FJ80 ABS Tone Rings. This will allow you to install the Longfield™ FJ80 Gun Drilled 30-Spline Super Set on both ABS and Non-ABS FJ80 applications. No other kit on the market can compare.

Application Data:

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.

Available Options:

Longfield™ FJ80 Gun Drilled 30-Spline Super Set, 301720-1-KIT, $681.45

Longfield™ FJ80 Gun Drilled 30-Spline Birfield, 303708-1, $229.95

Longfield™ FJ80 30-Spline Inner Axle Shaft, Short, 303242-1-KIT, $114.45

Longfield™ FJ80 30-Spline Inner Axle Shaft, Long, 303243-1-KIT, $114.45

FJ80 ABS Tone Ring, 303249-1, $15.75

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