Just bought a used 2001 Excursion 7.3L 4x4 with 30k miles. Truck has been lifted (looks like about 4")

Previous owner was never happy with steering and had the steering box rebuilt and ball joints replaced. It's not exactly "sloppy", does not pull to one side, but just seems like it does not want to stay straight without constant driver input.

I suspected not enough caster angle from the lift springs. Had it checked - had about 3 degrees of camber and zero toe-in. Seems like there should be at least a little toe-in.

Can anyone tell me what the factory spec is for toe-in on these trucks?

 

According to my reference the toe in is 0.03 degrees +/- 0.25 degrees