im liftin my xj 6.5 in, gonna prly need a sye and driveshaft, but i have the np242 transfer case and every kit is for the 231, will this work on the 242? what is the differance in the yolk setup? ironrock and advanceadapters is what i was looking at.. any help would be great thanks guys...

 

no it wont work on the 242....they dont have nearly as many options for the 242 as they do for the 231...they mostly sell hack n taps for 242


There are several different configurations for a NP231 transfer case, but only one or two for the NP207 and NP242. These options are both offered from Rubicon Express in the form of their Hack and Tap SYE. It requires you to cut the rear output shaft down to 1" and tap the end so that a flange can be slid over the splines and bolted to the output shaft. The 96+ H-n-T kits for the NP242 are much cheaper than the older style ones. The reason behind this is that the older units have a flange and a housing that must be fitted. The 96+ are sealed housings, so it only requires the flange.

The NP231 offerings are plentiful. There are a couple of flange style Hack and tap designs (RE and Currie) and even more with a shorter and tapped output shaft that use a yoke or flange. There are also Heavy Duty units that use a 32pline output shaft and a Yoke. The replacement output shaft types are more involved as far as installing them, but they also allow the easy use of a stock front driveshaft to work.

A stock front driveshaft from a 91+ auto transmission and NP231 equipped XJ can be used with either style SYE. The flange style setup will require an adapter to work, but most yoke style SYE use the same 1310 U joint that the front shafts use stock. This setup can be used for lifts ranging from 3-6" depending on which type of SYE you use. The yoke style SYE's tend to be shorter than the flange and adapter type, so a taller lift may not be possible since the stock shaft has only so much travel to it. The longer type SYE can use a stock driveshaft with more length.



hopefully this helps out a little

 

As mentioned, no the kit for the 231 will not work for the 242. Chances are your going to have to do a hack n tap rather than a full SYE. Usually only hack n taps are offered for the 242, they serve the same purpose though and are just as good.

 

thanks guys and thenning your reply was very helpful, thanks again i just want to get everything together before i do the lift that way its all nice and easy and done right most of all