tzender

so i just replaced my transfer case on my 86 cherokee after i broke it. i replaced it with the same np 231 transfer case that came out of it now that i have the new case in place my jeep will not move. its a five speed it goes into gear but then nothing happens ive checked all the linkage on the t-case and its all hooked up right not sure where to go from here? if anybody has ideas what it might be just let me know.THAKS YOU.

Borego

5sp you mean Standard Tranny, right?
Check the clutch?

tzender

yeah its a standard 5speed tranny yeah i replaced the clutch about two weeks ago. everthing worked good till after i installed the new t-case. but its a project so i got time just kinda confused about the damn thing not wanting to move now.

radio flyer

86 had a 207 transfer case as memory serves, if so i'm not sure that the splines are the same as the 231. If they are did you get a jy case or a rebuilt case.

DagBMX

wow, that blows!

what about the input shaft? i've heard about some people replacing the transfer cases, but have the wrong input shaft length, and it results in what you are describing.

DagBMX

yeah, and just did a double check on this as well, it was either an NP207, NP228, or NP229.

tzender

yeah just put in a diffrent tran-case put in a 207 am 3 what came out of the jeep was a 207 am 2 so not sure if there the same or not but i still have the same issue as before.

brucet

Bummer.. It does kinda sound like no engagement between the tranny output shaft and the tcase input shaft. Did you compare them prior to installation? Also did you spin the input shaft and output shafts to make sure everything worked prior to install? Hopefully its something easy but there is a lot of info out there particularly on input gear spline count and the length of the shaft as well. You can narrow it down a lot from the tag number info on the transfer case. That will give you the date of manufacture and the assembly number. With that info you can check the interchangeability with one of the on-line part number guides (i.e. what assy number used in what year, what tranny, etc)
Bruce

4.3L XJ

That 5 speed has 21 splines. You probably have a 23 spline transfer case input so the tranny shaft is just spinning inside. You can buy a new gear for the tcase, but it will set you back $200. You better pull it and exchange it if you can. I might have my old tcase still. I am cleaning out the shop now and may stumble across it. Anyway, I can't remember getting rid of it. If I can find it, I will give it away.

tzender

thanks everybody il have to check that out . just picked up another 86 cherokee today 7" lift 31" thornbirds and a welded rear for $375 prety good deal guy said it doesnt run but i got way to many extra parts im sure i can make it run.

DagBMX

damn, not bad! what did he say it needs to run?

tzender

all i did was cheap spark plugs wires and some new gas and i t fired right up so that was nice . got my trans case issue figured out its up and wheeling now!!!!!!!!!!!! thanks for all the advice.

Howler_GT

Since nobody else willask.
I will.

What was the problem?
-AND-
How did you fix it.

Details, man...details

93XJGreenMonster

I think I had read somewhere that if the tranny is in gear when putting the t case back on that you won't be able to pull it out of gear, or visa versa.