Transmission swap

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Oct 9, 2018 | 08:55 AM

Redneck244

Thread Starter

Newbie

Joined: Aug 2018

Posts: 18

Likes: 0

From: Delaware

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 4.0

Transmission swap

I have a 98 grand Cherokee and the transmission is starting to act funny. Sometimes if I shift to n it’ll still put power to the wheels. Same thing with park sometimes. I’d really like to upgrade to a 5 or 6 speed transmission. Any options for that? If not then what should I do?

Oct 9, 2018 | 09:37 AM

firebane

Senior Member

Joined: Dec 2017

Posts: 622

Likes: 9

From: Calgary, AB

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 5.2

Quote:

Originally Posted by Redneck244

Yes and no.

No because anything you do will be severely custom and depending on where you live you might not pass inspections.
Yes because you could technically swap a ax15 or nv3550 if you wanted but its going to be a HUGE undertaking due to pedals, driveshaft, transfer case, check engine codes etc etc.

Oct 13, 2018 | 01:09 PM

Redneck244

Thread Starter

Newbie

Joined: Aug 2018

Posts: 18

Likes: 0

From: Delaware

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 4.0

Quote:

Originally Posted by firebane

so basically I’m screwed? What if I get a ecu from a manual Cherokee and the tranny from one?

Oct 13, 2018 | 04:51 PM

firebane

Senior Member

Joined: Dec 2017

Posts: 622

Likes: 9

From: Calgary, AB

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 5.2

Quote:

Originally Posted by Redneck244

so basically I’m screwed? What if I get a ecu from a manual Cherokee and the tranny from one?

The only GC that came with a manual was in 93 and it was behind a 4.0

Oct 13, 2018 | 05:06 PM

00t444e

CF Veteran

Joined: Nov 2015

Posts: 3,636

Likes: 469

From: Southern OH

Year: 1997

Model: Cherokee(XJ)

Engine: 4.0

He has a 4.0, finding a 93 manual might be a challenge but everything should bolt up, and it will take some wiring to get the clutch pedal position switch, cruise control, and reverse lights to work. The computer may need to be flashed for a manual transmission.

Oct 14, 2018 | 12:18 PM

Redneck244

Thread Starter

Newbie

Joined: Aug 2018

Posts: 18

Likes: 0

From: Delaware

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 4.0

Quote:

Originally Posted by 00t444e

so it really shouldn’t be that hard once I find the manual 93, and all I’d have to do is pull the tranny and clutch pedal and everything for the clutch pedal right? My cruise control doesn’t work as is anyways. It works sometimes lol

Oct 14, 2018 | 01:57 PM

firebane

Senior Member

Joined: Dec 2017

Posts: 622

Likes: 9

From: Calgary, AB

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 5.2

Quote:

Originally Posted by Redneck244

Finding the pedals and pcm will be the challenge. I've been looking for zj 5 speed pedals for awhile.

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Oct 17, 2018 | 02:26 PM

Redneck244

Thread Starter

Newbie

Joined: Aug 2018

Posts: 18

Likes: 0

From: Delaware

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 4.0

Quote:

Originally Posted by firebane

Finding the pedals and pcm will be the challenge. I've been looking for zj 5 speed pedals for awhile.

you think I could find one in a junk yard? And what do you think is wrong with my current tranny

Oct 18, 2018 | 08:46 AM

tinytrax78

Senior Member

Joined: Feb 2011

Posts: 822

Likes: 4

From: orrville ohio

Year: 1994

Model: Cherokee

Engine: 4.0

good luck finding the petals and as for your tranny it was used too much when it was new

Oct 18, 2018 | 08:53 AM

#10

firebane

Senior Member

Joined: Dec 2017

Posts: 622

Likes: 9

From: Calgary, AB

Year: 1998

Model: Grand Cherokee (ZJ)

Engine: 5.2

Quote:

Originally Posted by Redneck244

you think I could find one in a junk yard? And what do you think is wrong with my current tranny

There is a reason why people butcher XJ pedals for the ZJ... they are literally a rare item. If someone wanted to make some coin.. they would gather up ALL the ZJ 5 speed pedals they could find and make a small fortune.