With the steering wheel unlocked, the dynamics of the tow dolly on the toad uses the toad's suspension when turning/cornering vs a locking steering column would need the tow dolly base plate under the toad's front wheels to rotate/turn with a turning movement from the motor home towing it. You have to remember that the tow dolly has it's own wheels plus you are adding the toad's rear wheels to the equation.
Paul
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