4 WD Ford Superduty trucks can be fully adjusted for toe, camber and caster. Camber and caster is adjusted by rotating or exchanging an eccentric bushing that locates the upper ball joint, so the camber and caster adjustment is very inter-related. One of the bigger problems with the Superduty solid axle is front wheel wobble. This is often caused by the rubber bushing in the chassis side track bar mount starting to soften, or by too little caster. Slight pull to one side or the other can be caster, and can also be tire wear or the so-called "radial tire pull", a tire just pulls one way or the other for no discernible reason. It's worth while just rotating your tires before you go for an alignment.
Brian
2005 F250 Supercab, Powerstroke, 5 speed automatic, 3.73 gears.
20 ft race car hauler, Lola T440 Formula Ford, NTM MK4 Sports Racer
1980 MCI MC-5C highway coach conversion
2004 Travelhawk 8' Truck Camper