Hello, I know this question has been asked a million times, but I have a couple specific questions. I have a 1998 Cherokee, 4.0 4x4 auto and I'm wanting to put a 5speed in it. I have a complete 1990 Cherokee, 4.0 5speed 4x4 with motor problems. I'm wondering will the trans, transfer case, driveshaft, linkage, pedals, etc.. from the 1990 bolt up and work in the 1998? I know the 1990 has internal slave cylinder and that's not preferred, but I have the perfect donor jeep to do the swap, if it will work? Thanks in advance!

 

I'm not sure... Your jeep is OBD2 so wiring may be an issue, but again, I'm not sure. U ll need obd2 computer module and stuff.

 

I think the VSS works differently.

 

I was under the impression that the trans and transfer case would work, and I'd have to get a computer for an obd2 5 speed Cherokee. There's really no wiring on the manual trans and transfer case right?

 

I'm not sure so I can't answer.

 

I just had mine out the other day...I beleibe there is just 2 plugs....the reverse light switch and maybe another sensor? But no more than two.

 

It can be done ,Im running a nv 3550 set up out a 2000 tj. Making sure you have a Ax15 tranny in the 1990 would be a plus. As for electrial reverse lights and speedo all there is. Another area of concern is pilot bearing fitment.

 

It's a 1990 model cherokee that I'd be using the tranny out of. If it's not an ax15 can it still be used? I have a new clutch kit and slave cylinder, and the 1990 cherokee to pick parts off of. Thanks.

 

Yes it can be used. Ax15 or better would be a preferred set up. Also look into sourcing a stick shift ecm to avoid check engine light issues. Also getting pedal setup from 97 and up as 96 and down will be different.

 

According to Wikipedia
1987–Mid-1989: Peugeot BA-10/5 five-speed manual used with 4.0 L I6, 21 spline output. After that ax-15.

1990 is kinda close so you might want to be careful as the BA-10/5 is a real POS. My understanding is the changeover started mid 89.

I did this conversion putting a manual driveline from a 94 into an 89 auto XJ. I swapped the 94 motor along with it so the pilot was not an issue but likely will be for you. The pedals and slave bolted right up for me but I would take freedgr advice as the pedals are enough of a pain to start with.