Offroad Trailblazers and Envoys

Where have you driven your Trailblazer?

offroadTB.com has the information you need to modify your GMT360/70
for exploration and discovery of the unpaved areas in the world.

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News

View the latest news posts and updates from ORTB.

Lifts / Suspension

Vehicle suspension maintenance information and lifting articles.

Wheels / Tires

Relating to everything wheels and tires.

Differentials / Axles

Look in here for information about drivelines and gearing.

Fabrication

Components built by members, and tips for your own fabrication.

Electrical / Communication

Batteries, wires, antennas, and buttons.

Recovery

Stuck? We've got info to help you get out safely.

Utilities & Resources

Calculators, technical documents, and general resources.

Camping

Want to spend some time outside? You'll find info about that right here.

Troubleshooting

This section helps you find and resolve common problems.

Latest Forum Posts

RockAuto • RockAuto.com - Rebates, Rebates, Rebates! Some Expiring Soon

Take advantage of current promotions and manufacturer rebates at RockAuto!Fall Rebates on Shocks/Struts and Complete Strut AssembliesPurchase combinat [Go To Post]

Electrical / Radios • Re: Interior fans

Resistor... Thats right. I said relay, meant resistor. Either way glad you found the solution!Statistics: Posted by Flyingfischer5 — Wed Sep 19, 2018 [Go To Post]

Electrical / Radios • Re: Interior fans

Was the blower motor resistor. GMTNation was a help. Thanks for the information. Easy fix once I got my hand on right resistorStatistics: Posted by Mi [Go To Post]