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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.

  • 3,947 topics
  • 30,199 replies
Duplicolor Customwrap Remov... - last post by The Rod

Ask the GM Technician

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

  • 12,676 topics
  • 51,381 replies
2011 sierra shifting out of... - last post by govtech4

Performance Engine Tuning

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

  • 1,186 topics
  • 10,473 replies
Intune question. - last post by RWD

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.

  • 4,656 topics
  • 34,130 replies
What transfer case do I have? - last post by govtech4

Wheels, Tires, & TPMS

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

  • 2,715 topics
  • 20,490 replies
Biggest tires on factory 18... - last post by 1057

Audio, Electronics, OnStar, & SiriusXM

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

  • 5,233 topics
  • 27,439 replies
AM radio not working on MyLink - last post by gordonsweb

How-To

Installations, Maintenance, and Repairs.

  • 901 topics
  • 4,521 replies
2014 jump seat into 2001 cr... - last post by 02suburbanZ71