Chinook Overlander
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The Build/Powertrain

6L80E Transmission

Planned

A six-speed 6L80E automatic paired to the LandCruiser transfer case for touring and low-range work.

The V8 and transmission mocked into the LandCruiser chassis with the Chinook behind
System progress10%

The 6L80E is a stout six-speed automatic that suits the V8's torque and makes long highway stints and technical low-range crawling equally comfortable.

Integration means marrying GM transmission to a Toyota transfer case — an adapter and custom tailshaft work.

Challenges

Mating a GM transmission to a Toyota transfer case reliably.

Design Decisions

Standalone transmission controller for full tuning control.