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Technical & Advanced


Vehicle Appearance, Care, & Maintenance

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

  • 3,911 topics
  • 29,953 replies
Adam's Weekly Detail Wr... - last post by Nick@Adams

Ask the GM Technician

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

  • 12,592 topics
  • 50,916 replies
radio problem.07 GMC sierra... - last post by 02suburbanZ71

Performance Engine Tuning

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

  • 1,187 topics
  • 10,435 replies
Hypertech Max Energy - last post by KARNUT

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.

  • 4,615 topics
  • 33,945 replies
Weird thing happened while... - last post by The Rod

Wheels, Tires, & TPMS

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

  • 2,685 topics
  • 20,295 replies
What tire size? - last post by The Rod

Audio, Electronics, OnStar, & SiriusXM

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

  • 5,217 topics
  • 27,380 replies
2010 ltz bose w/subs touchs... - last post by rmkleman


Installations, Maintenance, and Repairs.

  • 896 topics
  • 4,483 replies
Right Rear Stop/Turn signal... - last post by bennyb