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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.

  • 3,992 topics
  • 30,453 replies
Oil Catch Can Observation - last post by Cowpie

Ask the GM Technician

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

  • 12,802 topics
  • 52,122 replies
Power mirror replacement plug? - last post by zxrbobby

Performance Engine Tuning

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

  • 1,195 topics
  • 10,516 replies
Header and Supercharger Dyn... - last post by Jennabear

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.

  • 4,684 topics
  • 34,259 replies
Turbo 400 help - last post by govtech4

Wheels, Tires, & TPMS

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

  • 2,763 topics
  • 20,838 replies
New BFG All Terrain T/A KO2 - last post by SouthernSilveradoGuy85

Audio, Electronics, OnStar, & SiriusXM

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

  • 5,269 topics
  • 27,552 replies
Open Infotainment Project - last post by OhmMega

How-To

Installations, Maintenance, and Repairs.

  • 913 topics
  • 4,585 replies
2007 Silverado 1500 No Heat - last post by 06SierraZ71