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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.

  • 4,020 topics
  • 30,671 replies
My brand new .... old looki... - last post by RyanbabZ71

Ask the GM Technician

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

  • 12,885 topics
  • 52,654 replies
Cruise Control not working - last post by doug_scott

Performance Engine Tuning

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

  • 1,203 topics
  • 10,583 replies
Black Bear tune vs. Hypertech - last post by 02suburbanZ71

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.

  • 4,717 topics
  • 34,505 replies
What Lift Kit? - last post by 00Silverado4x4

Wheels, Tires, & TPMS

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

  • 2,801 topics
  • 21,120 replies
biggest tire with a 2 inch... - last post by MB2008LTZ

Audio, Electronics, OnStar, & SiriusXM

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

  • 5,302 topics
  • 27,749 replies
Kicker Soundgate Review fro... - last post by DCazares

How-To

Installations, Maintenance, and Repairs.

  • 924 topics
  • 4,689 replies
2014 Exterior door handle c... - last post by gasmonkey78