I was simply mentioning that some people do that- - - - -not that I thought that's what you were suggesting. Unless some sort of radical modification to the original system has been done, like raising or lowering the suspension, installing a dropped axle, or installing wheels with a huge amount of offset or making radical changes in wheel diameter, it shouldn't be necessary to have an adjustable drag link. If the wheels don't end up tracking straight after everything is new and/or properly adjusted, something is bent.
Jerry