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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.

  • 3,914 topics
  • 29,969 replies
Hard water and pollen stains! - last post by Texas Husker

Ask the GM Technician

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

  • 12,599 topics
  • 50,962 replies
Retrofit 2015 Yukon Denali... - last post by Chris

Performance Engine Tuning

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

  • 1,186 topics
  • 10,453 replies
Black Bear tune vs. Hypertech - 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.

  • 4,618 topics
  • 33,961 replies
2002 Silverado Leaf Springs - last post by Saddle horse

Wheels, Tires, & TPMS

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

  • 2,686 topics
  • 20,307 replies
Atturo Trail Blade MT, real... - last post by Wormydog1724

Audio, Electronics, OnStar, & SiriusXM

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

  • 5,219 topics
  • 27,386 replies
2002 Silverado Rear speakers - last post by Saddle horse

How-To

Installations, Maintenance, and Repairs.

  • 897 topics
  • 4,488 replies
Right Rear Stop/Turn signal... - last post by bennyb