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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.

  • 4,428 topics
  • 33,881 replies
Mother's - last post by Sunnydaychevy

Ask the GM Technician

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

  • 13,932 topics
  • 57,856 replies
Horn issues - last post by 03yukie

Performance Engine Tuning

A forum dedicated to intensive and experienced engine and computer modification topics.
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  • 1,314 topics
  • 11,224 replies
Propane injected in front o... - last post by Duelin

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.

  • 5,052 topics
  • 35,369 replies
Can you approximate trans w... - last post by sdeeter19555

Wheels, Tires, & TPMS

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

  • 3,286 topics
  • 23,746 replies
Any reviews on AMP All terr... - last post by Coles5515

Audio, Electronics, OnStar, MyLink, Intellilink & SiriusXM

Infotainment, Mylink, Intellilink, SiriusXM, Bluetooth, Navigation Systems, OnStar, RemoteLink, smartphone connectivity, & aftermarket audio. Also includes Android Auto and Apple CarPlay.

  • 5,629 topics
  • 28,779 replies
03 gmc sierra had remote st... - last post by 15HDriver


Installations, Maintenance, and Repairs.

  • 481 topics
  • 3,256 replies
How-To: A10 Inside RearView... - last post by carnut325