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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.

  • 3,863 topics
  • 29,624 replies
Dash cleaning - last post by Blue Sierra Owner

Ask the GM Technician

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

  • 12,467 topics
  • 50,106 replies
2010 Silverado 1500 wont st... - last post by viktoryakimov

Performance Engine Tuning

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

  • 1,165 topics
  • 10,307 replies
Doing my own tune!! - last post by Danthaman69

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.

  • 4,563 topics
  • 33,680 replies
squeal, squeak on my Tahoe... - last post by Btuggle88

Wheels, Tires, & TPMS

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

  • 2,626 topics
  • 19,946 replies
Toyo Open Country AT2 - last post by surebuttercringe

Audio, Electronics, OnStar, & SiriusXM

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

  • 5,180 topics
  • 27,226 replies
6.5" Subwoofers? - last post by dtspitcherguy

How-To

Installations, Maintenance, and Repairs.

  • 884 topics
  • 4,436 replies
2002 GMC Sierra 1500 Drive... - last post by markjr77



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