I recommend giving more specific details about your ride. And a ton more pics.
3 speed to me is a standard fj40 3 speed manual transmission. That’s sketchy if that is what’s in it. 81 came 4 speed stock. I hope it’s at least an automatic? Is this a US fj40 or an import? What’s the engine bay look like. What does the transfer case, transmission, and interior look like? A pic of the power steering, cluster, and tub interior would be great too. 81’s have value all original but this looks heavily modded. More details will get you better interest.