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Advanced Drivetrain, Suspension & Tuning

Deep dives into mechanical theory. Gear swaps, transmission rebuilding, solid axle swaps (SAS), and HP Tuners / ECU calibration.

6,734 topics in this forum

  1. Changing from a 3.23 ratio to a 3.42 or bigger

    By Ratliff3,
    • 0 replies
    • 1.3k views

  2. Shift

    By Chevythunder2014,
    • 0 replies
    • 1.4k views

  3. Lifting 2023 GMC Sierra 1500 Denali w/ Super Cruise

    By Blake513,
    • 1 reply
    • 4.7k views

  4. 1998 gmc yukon dlt

    By Greg Lanser,
    • 0 replies
    • 1.4k views

  5. 2004 Chevy Silverado 1500 5.3L 4x4

    By amy269,
    • 1 reply
    • 3k views

  6. Interchangeable tranny's

    By Michelle Parrish,
    • 0 replies
    • 1.4k views

  7. ‘15 Camaro SS trans temp

    By Chevygirl95,
    • 0 replies
    • 878 views

  8. Lowering an AWD Sierra Denali. Any Problems? 1 2

    By BradleyJC,
    • 23 replies
    • 45.8k views

  9. Rear Axle interchange

    By Keith Ray,
    • 0 replies
    • 1.6k views

  10. Black Bear tune vs. Hypertech 1 2 3 4

    By 010Bowtie,
    • 45 replies
    • 15.3k views

  11. Sudden 4l65e loss of all acceleration while on highway

    By slane790,
    • 0 replies
    • 1.6k views

  12. 2022 Chevy High Country

    By Steve Martinez,
    • 1 reply
    • 2.5k views

  13. 2017 Chevy Silverado 1500 4X4 Goes into gear but won't drive

    By ChevyGirl777,   
    • 2 replies
    • 14.2k views

  14. 2009 Suburban Transmission issues

    By combatKarl,
    • 1 reply
    • 3.3k views

  15. 97 chevy tahoe 4l60e

    By Davidflynn2,
    • 1 reply
    • 2k views

  16. 4l80e shifting hard

    By CharlieGotjuice,
    • 1 reply
    • 2.2k views

  17. Column Shifter No Indent For M

    By BoneyToes,
    • 0 replies
    • 1.9k views

  18. 2018 GMC Terrain Denali 2.0 Turbo Upgrade?

    By Chris Ocean,
    • 0 replies
    • 3.4k views

  19. True dual exhaust.

    By jonniebgood,
    • 2 replies
    • 1.9k views

  20. Transmission or tranfer case? Electrical or mechanical?

    By AaronandAlicia Dailey,   
    • 3 replies
    • 4.3k views

  21. AFM Disable Damage 1 2

    By L83_Z71,   
    • 22 replies
    • 144.1k views

  22. 4l60e shifts to fast

    By joshuah arrell,
    • 0 replies
    • 2.2k views

  23. 2014 Silverado K1500, 145k miles. Transmission making loud screaming noise 30 to 40 mph. Shifting becomes erratic.

    By Dalelee,
    • 0 replies
    • 2k views

  24. 2001 transfer case work with a 2003?

    By 03 silverado lq4,
    • 0 replies
    • 2.2k views

  25. 2017 Silverado misfire and throwing codes

    By Jose R,
    • 1 reply
    • 2.8k views
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