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  1. #1

    Default Transmission Swap

    I did a search on the site to see if this was a thread before but i didn't find anything. I wanted to know if it was possible to swap a new silverado's 6 speed auto into my 05 5.3L 2wd silverado.

  2. #2


    Never heard of the swap, sounds like a good one. I would think at the least you have to replace/modify the trucks ecm.

  3. #3


    Thats what i was thinking. Maybe give me the ability to stick a lower rear gear in it but keep highway mileage the same.

  4. #4


    Are both trucks 2wd? You will need to modify the transmission braces though, they changed with the new body style i believe. You will need to change the your ecm. And i also believe there is a difference in length of the transmissions so a new drive shaft might be in store. I don't know the physical size of the new transmissions compared to your body style, but the exhaust might be in the way when it goes under the transmission.

    Take a look under a truck like you wana swap. Who knows! Good luck!
    2002 Chevrolet Silverado 1500 z71 1985 Chevrolet Silverado k10 2006 Chevrolet Silverado 2500hd 6.6l LLY Duramax
    6.5" BDS Suspension Lift Edelbrock Carb & Polished Intake Manifold & Valve Covers NAPC Race Transmission & NAPC Built Transfer Case
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    AirAid Cold Air Intake with K&N Dry Filter & AirAid PowerAid Throttle Body Spacer 2" Suspension Lift 33x12.50r15 Tires EFI Live & AFE Stage 2 Intake
    Pacesetter Long Tube Headers with Cats Gone True Dual Exhaust FlowPro 3.73 Gears Yukon Grizzly Locker with Mag-Hytec Cover & Traction Bars
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