Hi Albert
It was me that wrote something about the Steering Issue into TCs Mercedes Stock Build Thread.

Most of you run the King,Knight,Aeromax and Globe Chassis with a long Wheelbase and the Steering in the Right(Ackermann) Position.

At the short Wheelbase 2 Axle and the Scania 3 Axle Chassis the position of the Steering is wrong.
The Reason is,at this Chassis the Tranny Case is nearer to the Front Axle than on the other Chassis.
So Tamiya just put the Steering Rod in Front of the Axle.

You can fix it,but maybe you have to cut the first Fixing Point from the Tranny Case.
Michael