Young humanoid took a different approach at "NXTIzing" (thanks nxtbean for the
term) his 4X4 Off-Roader. Young humanoid rebuilt the chassis from the instructions, but modified it along the way to accept the NXT motors directly driving the front and rear differentials. Young humanoid then added the steering motor and bodywork. The resulting model had no gear slip, but poor steering radius (as was true in the original model)