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Thread: ZF8 Vin Change

  1. #1
    Potential Tuner
    Join Date
    Apr 2021
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    2

    ZF8 Vin Change

    Hello,

    Just wondering if HPT supports changing the VIN of a ZF8 transmission.

    Thanks!

  2. #2
    Quote Originally Posted by sommmatt View Post
    Hello,

    Just wondering if HPT supports changing the VIN of a ZF8 transmission.

    Thanks!
    Why would you need that? Licensing?

    I just swapped a 2016 Charger 8hp70 for a one out of a 2017 Challenger and functionally it worked just fine.
    Only real hang-up was tuning. I had to buy a new license because the TCM cal id changed.

  3. #3
    Potential Tuner
    Join Date
    Apr 2021
    Posts
    2
    Was unsure if we were going to run into vin mismatch issues. First time getting a Dodge set up going. Thanks.

  4. #4
    The TCM doesn't store the VIN. You can freely swap 8HP70's in and out. I have a 2019 8 Speed from a 1320 car in my 2015 Scat Pack.

  5. #5
    Tuner fumanchu182's Avatar
    Join Date
    Oct 2019
    Location
    Maryland
    Posts
    78
    What if you need to swap in a rebuilt HP90 into a HP70 car (originally) with a TCM that has another VIN, won't there be a communication mismatch as the PCM will request the VIN from the TCM (and it does store it) and not communicate?
    Hellcat PB > ET: 10.092, MPH: 135.650, 60': 1.492, R/T: .000
    Bone Stock Scat Pack PB > ET: 11.612, MPH: 119.52, 60': 1.634, R/T: .000 (gone but not forgotten).

    https://youtube.com/user/fumanchu182