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Thread: 1228747 to 1227477 swap.

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  1. 02-12-2012 #1
    1leg
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    1228747 to 1227477 swap.

    Thought i should start a new tread as i'm sure i will have a few question that others might find helpful. After this swap is complete and running properly i will begin the 427 swap.
    1989 v-2500 suburban 5.7tbi/TH400 4.11 gears with 1228747

    Swapping in a 1227747(asdz) from a 1989 G20 5.7tbi/700r4 2.73 gears.

    Plugged in with no wire changes:
    Started: OK
    Idle Park: good
    Idle in gear: OK(could be aftermarket cam)
    acceleration: slight stumble on take off
    transmission: shifted OK
    CEL: NONE
    Problem noted:
    Transmission kicks down in to low gear at speeds over 30mph. TCC being engaged do to ECU set-up for 700r4
    slight stumble win taking off from a stop on low speed.
    Attached Files Attached Files
    Last edited by 1leg; 02-12-2012 at 01:51 AM.
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