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  1. #1

    Default TB/ENVY 4x4 Question

    Did they ever build the 360 platform with different drivetrain components

    Been looking for a 02-05 and running CompNine for the Build Sheets
    Some are listed with the NP8, which I believe is the 226 TC and some are not, but are being listed as 4WD
    Would these be AWD vs 4x4?
    or did they ever use Modules?
    2005 YUKON DENALI...... 2 WHEEL DRIVE.... Every option, Bermuda Blue Metallica

  2. #2


    The 360 came in 3 configurations:

    The Trailblazer/Envoy versions used the NVG226 TC, the Buick/Olds trucks used the NVG126 TC

    The 226 provides selectable 2wd/4wd/A4WD/Neutral, the 126 is only AWD.

    There is a third transfer case used in the SS AWD trucks, unlike the 226/126 TC, it uses a LSD configuration

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

  3. #3


    Thanks R-V
    Still confused why there are no TC RPO codes being listed though, maybe Build Sheet error or CompNines error?

  4. #4


    Probably no code, because there are no choices. There is a model number to distinguish the 2 wheel drives and the 4 wheel drives, when you order the 4x4, it comes with a package of parts, the T-case is just one of the many parts.

    If AWD was an option for the Trailblazer/Envoy trucks, there would be a RPO code for each T-case

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