Originally Posted by Annie1955
Where would this be adjusted then? The RV dealership or a Ford dealership? Is this Castor adjustment related to alignment?
Setting the caster is part of an alignment. Best to use an independent truck alignment shop for aligning the E series. Definitely not an RV shop and a Ford shop will just want to leave it at 3.5 Degrees.
Adjusting the caster involves changing out the concentric bushings that anchor the top of the upper ball joint and replacing them with adjustable concentrics such as Ingalls 59400s. A good alignment shop will know all about this topic.
By the way, according to the members of the Jayco forum, Jayco will typically cover the costs of this first alignment.