01 swap questions

[Phjoshuy]

I’ve acquired a 2001 Cherokee for deal with 160k miles on the engine.

 

the only problem is it was a 2wd I was wondering if I do the 01 swap and change over to the OB2 am I able to keep the factory auto trans and transfer case in my 88 Comanche?

 

thank you

[89 MJ]

I don’t think so. But you could probably find a 98-01 transmission and transfer case for a reasonable price. 

[AZJeff]

9 hours ago, 89 MJ said:

I don’t think so. But you could probably find a 98-01 transmission and transfer case for a reasonable price. 

I believe this is correct.  I seem to recollect that the trans control subsystem changed when they went to OBD2, and was further refined in the last couple of years of XJ’s.

[Phjoshuy]

Do yall know if I would have to change out the transfer case as well?

 

surely I could run the Comanche one still. 

[89 MJ]

46 minutes ago, Phjoshuy said:

surely I could run the Comanche one still. 

Nope, not without changing the trans output shaft or the t case input. They changed from 21 to 23 spline. 

[Flexj]

I believe the previous comments are correct regarding the transmission, but I have always had manual transmissions so I'm not sure...

   As far as the t case, you can swap out the 21 spline input for the 23 spline input super easily, like stupid easy if your down to take the t case apart.. The only other difference would be the speed sensor, yours is mechanical and the new one is electronic, but you can literally just pull the mechanical one and swap it out with the newer electronic one... Hard to say if it would make sense financially, but I have used my 88 t case in three phases of my rig, the stock setup with 21 spline, the ax15 swap with the 23 spline input, and now I'm using it behind my LS swap with the chevy input shaft and the dodge ram 1500 6 planetary gear setup. The NP231 and most of the NP t cases are like building lego sets, super easy and mostly interchangeable.