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Thread: Trans swap from 2010 to Chevy performance trans

  1. #1
    Tuner in Training
    Join Date
    Jun 2013
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    Trans swap from 2010 to Chevy performance trans

    Working on my 2010 silverado and trying to find some answers. The stock 4l60e transmission went out on me and I picked up a new Chevy Performance 4l70e. The part number of the new transmission is 19260961 and it has a 15 pin connector going into the trans. The Chevy catalog says to use 19257634 trans controller. Doing some searching on the forum I see that in 09 chevy changed some things on the 4l60e and it has a 17 pin connector. Is it as simple as flashing in a 07-08 tcm tune, do I need to repin the connector, I saw that some things like the gear indicator is now internal... I have a tuner but I guess I'm not explaining it right to them and its at a buddies uncles house. I just want to make sure I can drive it when the new trans is in.


    Untitled by Badger009er, on Flickr


    Untitled by Badger009er, on Flickr
    Last edited by Gus; 07-22-2013 at 11:58 PM.

  2. #2
    Tuner in Training
    Join Date
    Jun 2013
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    28
    Well I think I have answered some of my questions. Obvious a repin is in order. I guess my questions are more on the tune, and a few of the wires that are not common between each other. I have DIY alldata so only access to my truck and I'm guessing GM used a standard 4l70 pinout for their performance transmission and the aftermarket controller.

    2010 pinout
    A- 1-2 shift solenoid
    B- 2-3 shift solenoid
    C- PC Solenoid Valve high control Sol A
    D- PC Solenoid valve low control Sol A
    E- Ignition Voltage
    F- Trans Range A
    G- Trans Range B
    H- Trans Range C
    J- Trans Range P <<<<<< ?
    K- AT ISS high signal <<<<<?
    L- TFT Sensor<<<<<<Guessing transmission fluid temp + in ref to 4l70 layout?
    M- Low Reference<<<< Guessing Trans fluid temp - in ref to 4l70 layout?
    N- Ground
    P-S Not Used
    T- TCC sol
    U- TCC PWM
    V-Trans Turbine Speed Switch Low Ref<<<<<?
    W- Trans mission Park/ Neutral Signal<<<<< New trans does not have this internal, Will I need to get a external one to mount on the linkage?

    Pinout for a 4L70E i found.. Not sure if its the same as the controller gm is offering separately
    The pin layout appears to match the connector in the new trans.

    A- Shift sol 1-2
    B- Shift sol 2-3
    C-Line Pressure +
    D- Line pressure -
    E- TCC 1-2, 2-3, 3-2 + <<<<< Ignition Source?
    F-J Not Used
    K- Turbine Speed +
    L- ATF Temp +
    M- ATF Temp -
    N- Trans range A
    P- Trans Range C
    R- Trans Range B
    S- 3-2 Shift solenoid <<<<<< original trans does not have
    T- TCC ON/ OFF - activator
    U- TCC PWM
    V- Turbine Speed<<<<< single turbine speed other trans has

  3. #3
    Tuner in Training
    Join Date
    Jun 2013
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    28
    Looked up the gm controller number and found that jegs lists the instructions. It's a pcs controller so I went to their site and found the wiring diagram for the connector.



    Untitled by Badger009er, on Flickr