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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.

6,735 topics in this forum

  1. No 3rd and 4th gear.

    By My life With Abilities,   
    • 1 reply
    • 4.4k views

  2. broken end of cable that pulls sliding rear window

    By sunset beach guy,
    • 1 reply
    • 1.5k views

  3. 97 Tahoe won't stay out of limp

    By Zachary Winstead,
    • 0 replies
    • 1.3k views

  4. 99 - 06 4/6 drop kit on 18’s I need help

    By Demarcus Body,
    • 7 replies
    • 9.4k views

  5. 07 Silverado 5.3 4×4. Shifting points change manually without a tuner.

    By terry beavers,
    • 0 replies
    • 1.3k views

  6. help

    By charlie123,
    • 2 replies
    • 1.3k views

  7. 4l70e downgrade to 4l60e

    By Nick Swope,
    • 1 reply
    • 1.4k views

  8. 2008 Silverado no 4x4 and no indicator light 1 2

    By Erick Baccus,
    • 18 replies
    • 17.2k views

  9. Levelling kit not level - help appreciated.

    By Devin McCormack,
    • 2 replies
    • 1.9k views

  10. 1995 Chevrolet 454 starts then stalls

    By J.c.,
    • 3 replies
    • 6k views

  11. O 2 sensor bank 1 sensor 1 location on 2003 sierra

    By ForrestMelissa,
    • 2 replies
    • 5.6k views

  12. Who's Our Resident Gear Pattern Expert?

    By LongrangeLauber,
    • 0 replies
    • 982 views

  13. 4l60e issue

    By Elvin Portillo,
    • 1 reply
    • 1.2k views

  14. 4wd parts

    By Will Hill,
    • 0 replies
    • 882 views

  15. Pulled cv shaft out of front diff - no c clip

    By Airspeed-Alive,
    • 2 replies
    • 4.5k views

  16. 2019 and up dyno tune

    By Black02Silverado,
    • 0 replies
    • 2.3k views

  17. Fresh Rebuild With Temp Problems

    By Austin Huff,
    • 0 replies
    • 899 views

  18. Bushing from rear transfer case shaft.

    By Johnny_,
    • 0 replies
    • 1.1k views

  19. 2015 GMC power off while driving, alert on check stabiltrack

    By Dominguez,
    • 0 replies
    • 1.9k views

  20. Help with transfer case actuator

    By alanpadilla97,   
    • 0 replies
    • 1.2k views

  21. Axles with lift

    By Peter Caikauskas,
    • 0 replies
    • 716 views

  22. Rear diffedential

    By Z71girl67,
    • 5 replies
    • 1.3k views

  23. Leak at Transmission to Transfer Case

    By PapaFix,
    • 0 replies
    • 991 views

  24. ISO help with t-case swap

    By Gabe Binkley,
    • 0 replies
    • 944 views

  25. Help Needed with Transfer Case

    By PapaFix,
    • 8 replies
    • 1.8k views

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