How Much ATF do I need for NP231?
All Wrangler transfer cases require ATF, literally any ATF is fine with ATF+4 being a superb choice. It holds about 2 quarts.
What fluid does a ax15 take?
-4.0L (6cyl) The AW-4 Automatic Transmission uses Transmission Fluid labeled Dexron-III/Mercon. The NLGI specs are important – typical NLGI GL-5 gear oil carries added sulphur used as an Extreme Pressure (EP) lubricant.
Is the NP231 transfer case good for Jeep 231?
They were engineered for durability and simplicity of build – both an advantage to the OEM assemblers as well as individuals servicing them. The NP231 transfer case has turned out to surprise us in its strength, gearing, upgradeability and servicability. Most of our customers choose to retain their Jeep 231 with their conversions.
What’s the name of the new Jeep transfer case?
New versions of the NP231 are referred to as NVG231 or NV231 which stands for New Venture Gear. The tag on the back of the transfer case will reflect the name change. Only the name is different. A NV231 HD model is used in some ZJs.
What is the part number for a 231j transfer case?
This tag indicates a 231J transfer case, with a part number of 52099211, a build date of 6-21-99 and a gear ratio of 2.72:1. Early NP231’s on Jeeps with a vacuum front axle disconnect feature (as is usually evident by the presence of a vacuum switch on the NP231) did not have a true neutral disconnect when shifted into neutral.
Can a Jeep model 231 be rebuilt without lubricant?
Unless you own a TJ model 231, you will rapidly lose the ATF lubricant from the case if this occurs. The 231 is possibly the simplest of all the Jeep transfer cases to rebuild. Their assembly is intuitive, and parts are easily available and affordable.
Is the NP231 transfer case a good deal?
The transfer case is by no means perfect, but coupled with aftermarket upgrades; the NP231 transfer case meets the expectations of most jeep consumers. The chain driven NP231 was offered with a driver side front driveshaft shaft assembly only.
When did the Jeep process 231 transfer case come out?
In 1987 Jeep began the gradual introduction of the New Process 231 transfer case. The Np231 was initially introduced in Cherokees, followed shortly thereafter into the Wrangler. Jeep enthusiasts initially received the transfer case with mixed opinions.
What kind of transfer case does a Jeep Wrangler use?
The new TJ Wrangler continues to use the NP231, but the NP231 used in the TJ has a different tail housing that allows the removal of the drive shaft with out losing transfer case fluid. Both versions of the NP231 used in the Wranglers have an over all length that is long for a short wheel base vehicle.
Is the NP231 similar to the TJ speedometer drive?
The TJ introduced a similar vehicle speed sensor (VSS) however the speedometer drive used a new shorter gear assembly. The NP231 has long been the topic of many campfire debates as well as internet forum arguments. There has been much discussion as to the strength of this transfer case.