Originally Posted by
problemchild
The length of an alignment area is not very long, so for it to pull one way, it must be significantly steering left. You need to check all those parameters that you think are square, etc. Most likely scenario is that with fatigue, and standing pointing different directions, etc, you have inadvertently put toe-in on one side and toe-out on the other. It is so easy to do :) Even if your strings are not square to the car, but still parallel, it might dog-track, but should not steer itself.