[schwap]

Transmissions have their own, independant, lubrication system. It's driven off the input power from the engine.

[coryrc]

Right, and it's proposed the engine wouldn't be running.

[madaxe_again]

You don’t need a transmission if you have hub motors. It’ll be sat on the garage floor, so it would be a great surprise if it was running.

I’m planning on doing something similar on my old hilux. The lack of power steering or power breaks or any auxiliary system that relies on the engine simplifies the build substantially.