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Technical & Advanced


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Vehicle Appearance, Care, & Maintenance

Help for the do-it-yourself vehicle owner. Suggestions on how to make your truck look better & last longer.

  • 3,970 topics
  • 30,339 replies
Adam's Fall Pre Sale wi... - last post by LaserBlueZ71

Ask the GM Technician

Have a hard question?
Only Questions That You Would Go To The Dealer For, Please!

  • 12,757 topics
  • 51,834 replies
2000 gmc 6.0L power steerin... - last post by doug_scott

Performance Engine Tuning

A forum dedicated to intensive and experienced engine and computer modification topics

  • 1,193 topics
  • 10,502 replies
Alternator - last post by Chris

Transmission, Suspension, Transfer Case, & Axles

For all transmission and drive-line related topics. Included but not limited to 2WD, 4WD, AWD, transfer cases, & lift/lowering kits.

  • 4,666 topics
  • 34,186 replies
6 speed abuse - last post by LaserBlueZ71

Wheels, Tires, & TPMS

Anything related to rims, tires, tire pressure monitor sensors, fixing a flat, and general tire maintenance here.

  • 2,734 topics
  • 20,613 replies
What size winter tires is e... - last post by willie 07

Audio, Electronics, OnStar, & SiriusXM

SiriusXM, Bluetooth, Navigation Systems, OnStar, RemoteLink, smartphone connectivity, & aftermarket audio.

  • 5,249 topics
  • 27,462 replies
Need help picking subs - last post by Carder

How-To

Installations, Maintenance, and Repairs.

  • 905 topics
  • 4,543 replies
Heated Steering Wheel Insta... - last post by woody7978