• HOURS of Operation

    Open Monday - Friday 9A-5P EST

    QUESTIONS? GIVE US A CALL! 1 (765) 378-4908

    We're closed on major holidays.

  • Standard order lead time for Standalone Harnesses:

    Gen V - 4-5 weeks

    Gen 3 or Gen 4 -1-2 weeks (Several LS3 kits in stock!)

    Need it sooner? Give us a call to discuss expediting. Limited slots available.

    All other items typically ship within 3-5 business days unless specified otherwise.

  • HOURS of Operation

    Open Monday - Friday 9A-5P EST

    QUESTIONS? GIVE US A CALL! 1 (765) 378-4908

    We're closed on major holidays.

  • Standard order lead time for Standalone Harnesses:

    Gen V - 4-5 weeks

    Gen 3 or Gen 4 -1-2 weeks (Several LS3 kits in stock!)

    Need it sooner? Give us a call to discuss expediting. Limited slots available.

    All other items typically ship within 3-5 business days unless specified otherwise.

LS and LT Retrofit Specialists
Call to order today

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4L60E to 4L80E Upgrade Harness

4L60E to 4L80E Upgrade Harness

$
Choose your options:
4L80E Upgrade
Vehicle Application(required):
Product Code: 60to80Upgrade
Usually Ships in 24 to 72 Hours
This product qualifies for FREE SHIPPING!
If switching from a 4L60E to a 4L80E transmission, this is the adapter harness needed for correct operation of the new transmission. Includes adapter and ISS (input speed sensor) harness. ECM reprogramming required for proper operation.
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