Steering gear box backlash

Elimination of backlash on worm gear steering gear box in air-cooled VW1302 Super Beetle has far progressed it's behavior, urging me of re-consideration on the rear axle compliance mainly on the trailing arm rubber bush hardness. Special lubricant was applied inside in addition, well kneaded Microflon powder was added at the same time preventing gear wear. Though I thought that some unstable steering reaction must have been brought by the lack of lateral stiffness of the arms, I realized that the backlash in steering linkage also has much to do with this kind of inconvenience. I am going to try deeper on this point with more experiments.