How do I engage my Jeep 4H?
The Jeep Wrangler and Jeep Gladiator have the 2 Wheel Drive Part-time System. To put them into 4 Wheel Drive High you need to be drive around 7 – 30mph and pull down the lever from 2H to 4H. If you need to put them into 4 Wheel Drive Low you need to be Parked and then shift into Neutral.
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.
Is the NP231 speedometer gears interchangeable in jeeps?
NP231 speedometer gears are interchangeable to correct for tire size and axle ratio changes. See this page to learn more about this. The 231 appears to have reached the end of its main production in Jeeps in 2006. However, expect it to be well supported by the aftermarket for decades to come.
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.
What are transfer case parts for Jeep Wrangler?
New Process NP231 Transfer Case Parts 1987-06 Wrangler, Cherokee & Grand Cherokee. Bearings, Drive Chain, Roller Bearings, Shift Forks, Gasket Sets, Main Shaft Gears, Sliding Output Shaft Gears.
When was the Jeep NP 231 transfer case introduced?
The Jeep NP 231 transfer case was introduced in the 1988 model year. Jeep’s YJ Wrangler and the XJ / MJ Cherokees with the Command Trac option were the first models to feature it.
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.
NP231 speedometer gears are interchangeable to correct for tire size and axle ratio changes. See this page to learn more about this. The 231 appears to have reached the end of its main production in Jeeps in 2006. However, expect it to be well supported by the aftermarket for decades to come.
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.