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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.

  • 3,863 topics
  • 29,625 replies
Dash cleaning - last post by Imcrazy

Ask the GM Technician

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

  • 12,470 topics
  • 50,122 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

  • 1,166 topics
  • 10,308 replies
Trying to decide on a tuner. - last post by txab

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.

  • 4,564 topics
  • 33,682 replies
Offroad Suspension Upgrade... - last post by kstruckcountry

Wheels, Tires, & TPMS

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

  • 2,626 topics
  • 19,950 replies
New Duratracs coming to market - last post by LaserBlueZ71

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


Installations, Maintenance, and Repairs.

  • 884 topics
  • 4,438 replies
GMT900 - Footwell Lighting - last post by 2013sierrasle

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