magnolia -
If you will look closely at the stud red58 is telling you about, you will find that it is not adjustable. That stud is actually the pin which holds the king pin in place. On that pin is a wheel stop. The wheel stop is a short piece of angled steel with a small pin punched into it to help hold it into place. The only way you are going to be able to stop the wheel from rubbing is to make some new wheel stops for each the left side and the right side that are longer then the stock ones so they will stop the wheel as it turns right or left left quicker. If you remove the wheel stop and look at it, you will see what it takes to make a new one. Be care full with those studs as they are soft metal and the nut will strip the threads easily.
Joe
