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.

Check out our Articles below and join the forum!
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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

Hi! I too recommend that tire size. 2.5" lift would be fine but might as well go 3" like I did lol. Just be sure to deflate your tires to th [Go To Post]

Cody_S wrote:So I hate to necro such an old thread, but it's been a hot minute since I've done a GMT360 build, and I'm having similar i [Go To Post]

So I hate to necro such an old thread, but it's been a hot minute since I've done a GMT360 build, and I'm having similar issues to Grea [Go To Post]