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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.

  • 3,968 topics
  • 30,330 replies
Opinions on paint coatings... - last post by Evan48

Ask the GM Technician

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

  • 12,753 topics
  • 51,819 replies
2001 Chevy Suburaban 1500 4... - last post by 1500j

Performance Engine Tuning

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

  • 1,191 topics
  • 10,486 replies
LQ4 6.0 performance build - last post by kstruckcountry

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.

  • 4,664 topics
  • 34,179 replies
Teflon tape on transfer cas... - last post by TruckNRoll

Wheels, Tires, & TPMS

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

  • 2,732 topics
  • 20,601 replies
Anyone running a 275/60r20... - last post by Kblaze94

Audio, Electronics, OnStar, & SiriusXM

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

  • 5,247 topics
  • 27,457 replies
adding bluetooth - last post by wing98

How-To

Installations, Maintenance, and Repairs.

  • 905 topics
  • 4,543 replies
Heated Steering Wheel Insta... - last post by woody7978