I have an 1978 F250 truck that wants to wander all over the road. My dad had a 1979 camper special that did the same thing. I had the front end tie rods tightened and it improved some but still does it. I have been told it is common to the kingpin, split axel Ford front ends. Is there a cure or can a later model non split front axel front end be swapped in? Do you who have the split axel front ends have to keep them in absolute top shape to avoid the wandering problem. The chevy (pardon my reference) that I owned did not do this. I hate having to follow fight all the ruts in the road.

 

I have the same truck and mine just goes where I steer it. Try a front wheel alignment and toe them in 1/16". Also check the adjustment on the steering sector if the steering wheel has any slop. Keep good tires on the front and do not change rotation of radial tires when rotating them and she'll drive like a champ.

 

Have you replaced the radius arm bushings? This is usually a sure fix. If you can put the urethane bushings in. Good Luck