1987-1997 Nissan Patrol | Safari Y60 4340 Chromoly Birfield Kit by Trail Gear (300795-KIT)

Longfield™ Nissan Patrol Birfield Kit

The Longfield™ 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.

The 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 axle shafts are also made out of 4340 chromoly steel. The Birfield side of the axle shafts are 30-spline and the diff side is 31-spline.

Note: Some minor clearancing of the knuckle ball may be required.

Manufactured in the U.S. using only high-strength chromoly materials, RCV Performance Ultimate CV Axle set simply replaces your weak Nissan Patrol Y60's axle shafts with a new high-strength design. The factory axles were designed with 31 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 the need to neck down the shaft. 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. 

Axle set includes right and left inner axle shafts & 2 pregreased CV joints.

Application: Nissan Patrol Y60 GQ ('87-'97). Includes right and left inner axles & 2 CV joints
OEM/RCV Inner Spline: 31
OEM/RCV Outer Spline: 31
OEM CV Inner Spline: 27
RCV CV Inner Spline: 30 (300M)
OEM/RCV Short Inner Axle Length: 16.56"
OEM/RCV Long Inner Axle Length: 36.25"

Manufactured in the U.S. using only high-strength chromoly materials, RCV Performance Ultimate CV Axle set simply replaces your weak Nissan Patrol Y61's axle shafts with a new high-strength design. The factory axles were designed with 31 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 the need to neck down the shaft. 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. 

Axle set includes right and left inner axle shafts & 2 pregreased CV joints. 

Application: Nissan Patrol Y61 GU ('97 up). Includes right and left inner axles & 2 CV joints
OEM/RCV Inner Spline: 31
OEM/RCV Outer Spline: 31
OEM CV Inner Spline: 27
RCV CV Inner Spline: 30 (300M Inner Race)
OEM/RCV Short Inner Axle Length: 17.06"
OEM/RCV Long Inner Axle Length: 36.75"