I Have a 1987 ford f-150 xlt lariet that i am having some steering problems with.everything in the front end is new including ball joints radis arm bushings axle pivot bushings tie rod ends and rebuilt steering box.the problem is the steering has no return to center when turning like going around curve.it has just a little slack and wants to wander the road a little.i think the slack is in the steering box but if you take it out with set screw steering is to tight.truck drives good except you manualy have to turn back to center.any suggestions would be apperciated.