The other day we had the body gear steering inop. In this case, the taxiing it was only a slight bit more difficult for the turn even shallow 90 degree turns but when a sharp 90 degree turn was made, a lot of that creaking noise was heard(more than normal) and was felt through the tiller.
During sharp turns, even with body gear steering working, rubber is left on the tarmac as the parts of the aircraft travel through different arcs, at different speeds, causing sideways skidding/rubbing. Body gear steering is designed to reduce this effect, but it can't eliminate it all.
Of course, with the system off, the gear is subjected to more significant stresses which will be
felt more acutely inside the aircraft.