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Thread: 03 sierra 4.3 to 5.3 swap(i need help)

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  1. #1
    That'd be awesome if mine will just bolt in. But the way my luck is going probably not. Haha all good though. I really hope it works after this!!!

  2. #2
    Join Date
    Nov 2007
    Location
    THE MEAN STREETS OF OKLAHOMA
    Posts
    11,120
    some do and some dont devin, we just welded simons in
    THEY CALL ME G.

    AZRAEL

    2017 RZR 1000 2 SEATER
    2023 RZR 1000 XP 4
    2008 LTZ DURAMAX 3500
    2023 300S 5.7
    2023 BUICK ENCORE[/B]

    The difference between winning and losing, is having a 2nd stage.

  3. #3
    Is thee a difference between 03-06 in the tac module, pedal and harness. Or are the all the same? Does it have to come out of a truck or does it even matter?

  4. #4
    Join Date
    Aug 2007
    Location
    Honeywood, Ontario
    Posts
    6,994
    TAC modules are one of those things that should be year specific to the tune. I'm running an 05 calibration, so I'm running an 05 TAC. Physically on the outside they're all the same. As far as the trucks go.
    2006 Silverado
    Little Black Bitch

  5. #5
    Join Date
    May 2007
    Location
    Oak Forest, Illinois
    Posts
    276
    As far as I know the 03-05 DBW parts are the same. I won't swear to it but, I think so.

    Jeff
    98 GMC RCSB 2wd, 100% internally stock 305, w/twin T-3 junkyard turbos,Ramjet intake w/42lb inj,12200411 PCM. 4675lbs w/me in it. Best time in 5 passes 13.01@110

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