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Transmission swap?

Tiny
NOAHWAY123
  • MEMBER
  • 2005 JEEP GRAND CHEROKEE
  • 4.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
The transmission in my vehicle is very clearly about to go. It’s an old Jeep, and I was looking into swapping the old trans out for the Torquelite zf8 transmission. My buddy works for a dealership and says that it’s all possible because the bell housing and everything is close to the same, but would there be issues with the ECM and transfer case if I ended up swapping in an 8 speed transmission for a vehicle that’s got optional 4wd?
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Thursday, September 29th, 2022 AT 3:15 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
I would not recommend this because you will need the computer that runs the transmission and wiring harness as well. It would be cheaper just to rebuild the transmission currently in your car. Here are instructions on how to remove the transmission for the rebuilt unit which you can find by searching google or eBay.

This video will help as well, the car is different, but the steps are the same.

https://youtu.be/3vJAojsrfuU

Check out the images (below). Please let us know if you need anything else to get the problem fixed.

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Thursday, September 29th, 2022 AT 12:10 PM
Tiny
NOAHWAY123
  • MEMBER
  • 2 POSTS
Oh, it’ll definitely be easier to just rebuild the current transmission, but I want to go fast. Built not bought baby.
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Thursday, September 29th, 2022 AT 12:11 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
Yep, I hear that. Let me know if you need anything else to help fix the problem.
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Friday, September 30th, 2022 AT 11:56 AM

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