[WSallai]

Richard hit the nail on the head with that question. I have been told that #413 had a Ridewell solid axle and #416 had the Dana IFS. I am not certain about #414 or #415 although I 'think' #414 had the Ridewell straight axle. Of course it is very easy to tell if you look under the front of the coach.

Hello.

I have Coach #416 and indeed it has the IFS in the front.  Contact Newell for Caster, Camber, and Toe-in specs.  My Coach tends to pull slightly right and the steering wheel is off by a couple of degrees.  I have some bushings and clamps for the sway bar that need replacing.  The key thing is to have the correct Travel Height before adjusting.

For those that have the solid axle, Caster and Camber are not adjustable, only Toe-in.  If these need adjustment, the Axle is bent and needs to be replaced per the documents in my Newell Book.  They did not update my Book to reflect the installation of the IFS.