Checking steering box for play, best way?

[GB SISSON]

Thanks Glenn, and the gal in question is actually an excellent driver with 20 years on the fire dept and all those trucks and aid cars, besides she prefers a manual trans in her daily driver which is a '96 subaru with a 5 speed and 220,000 on the clock. BTW her suby has incredible steering, like it's on rails (but the headlights perform more like parking lights).
And back to the original subject, be careful about tightening the screw with the locknut on the steering box. One bit too tight and it won't return to center on it's own after making a corner and that can be very disconcerting if you aren't expecting that.