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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.

  • 3,949 topics
  • 30,202 replies
Purolator Oil Filters - last post by gone_fishing

Ask the GM Technician

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

  • 12,685 topics
  • 51,436 replies
All exterior lighting malfu... - last post by tooch420

Performance Engine Tuning

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

  • 1,186 topics
  • 10,473 replies
Intune question. - last post by RWD

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.

  • 4,659 topics
  • 34,144 replies
2006 GMC 2500HD Lift Kit qu... - last post by JT Garza

Wheels, Tires, & TPMS

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

  • 2,717 topics
  • 20,508 replies
Tires? - last post by sdeeter19555

Audio, Electronics, OnStar, & SiriusXM

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

  • 5,236 topics
  • 27,420 replies
Stock radio part numbers an... - last post by Sox Fan


Installations, Maintenance, and Repairs.

  • 901 topics
  • 4,520 replies
2014 jump seat into 2001 cr... - last post by zxrbobby