Rugged Ridge NP231 Slip Yoke Eliminator (SYE) Kit, 88-06 Jeep Wrangler - Manual

Slip Yoke Eliminator Kit
For NP231
Part Number 52231
KIT CONTAINS:
Rear Output Housing w/ plug
Rear Output Bearing
Rear Output Seal Rear Output Yoke and nut
Main Output Shaft Speedometer Drive Gear
Snap Ring for Speedometer Gear-QTY: 2 Rear Output Bearing Snap Ring
Snap Ring for Mode Gear Front Output Spline Seal
Rear Output Spline Seal
NOTE: Some early NP231 produced from 1987 – 1990 have the vacuum switch for
the front axle disconnect housed in the rear output shaft housing. This kit is
supplied with a new housing that does not allow for the vacuum switch to be reused
for this applications. It will be necessary to purchase a cable operated disconnect
manufactured by 4x4 Posi-Lock or replace the front passenger side axles with later
solid axle shafts.
The purpose of this kit is to replace the slip yoke portion of the NP231 with a fixed-yoke,
CV-style drive shaft assembly. A CV equipped drive shaft will be required with this
conversion kit. The stock drive shaft can be modified to work. Proper length and
balance are critical. High –quality drive shafts in the required lengths and configurations
are available to compliment this kit for many applications.
The easiest way to install this kit is to remove the transfer case from your Jeep. Removal
is not necessary, but usually is much quicker and easier. Installation of this kit requires
almost total disassembly of your transfer case. Several suggestions that may help:
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