How to identify the transfer case input on a jeep?
The easiest way to identify the transfer case input is by identifying the stock transmission that Jeep used. The 21 and 23 splined output shafts vary on different transmission models.
Where is the NP231 on a Jeep transfer case?
The 23 spline version is used behind the AX-15 and the 21 spline is used behind the AX-5 and the BA 10/5. The output for the front driveshaft is on the drivers side. Low range is 2.72 and high is 1.00. Identifying it: Spotting the NP231 is easy thanks to the red and silver tag on the rear half of the case.
How can I identify my transfer case express?
Identifying Your Transfer Case Transfer cases come in a variety of styles and specifications depending on the manufacturer, make and year of your vehicle. Even within a model number (for example, 246), you can have variations in the internal components that actually result in a different transfer case (246-1, 246-2, etc).
Which is the weakest Jeep transfer case to get?
“The NP 207 is one of the weaker Jeep transfer cases, but can be upgraded. The NP 207 has an aluminum case and chain driven planetary reduction. Thankfully the NP 207 was installed behind some of the weakest Jeep power trains every used.
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.
When was the first process transfer case made?
There are numerous styles of New Process transfer cases, and you must be very careful in making your identification of such. The first units were the NP207s, and they were used in the early model Cherokee Jeeps. The full size Jeep trucks and Grand Wagoneers used the NP208. Jeep soon added the NP231 which replaced the Model 207 in 1987.
Where do you find the ID number on a transfer case?
Typical ID tags are shown here (Figures 1 & 2) with an explanation of what the information means. Record this information on your work order along with the previously gathered vehicle specs. On late model units you will find barcode decals on the cases with OEM part numbers attached.
When did the Dana 20 transfer case come out?
The Dana 20 is found in 1962-1979 Jeep vehicles. It is also found in IH and Ford vehicles as well as a limited run of GM trucks in the early-mid 1970’s. The Dana 20’s design was outstanding and remains one of the strongest and most refined of all the popular transfer cases.