I'll throw in some more research questions.
What is the difference between 2005-2012 and 2012+ knuckles for F250/350? Is it just the brakes? Will the newer brakes work with 17" rim?
It sounds like there was an adapter to go to older brakes with the 2012+ knuckle. Anyone have a link?
Is it worth going with the Super 60(450) setup over a 2005+ F250/350?
In order to go with a Super 60, it sounds like I would need F250/350 unit bearings to get to 8 lug(8x6.5"). Or can the 10 lug be redrilled for 8 lug? Does the stock F250/350 brakes work? Or is it aftermarket only?
In pricing out high steer machining on knuckles, it is almost looking like it is worth going aftermarket like Reid. $275ea for machining vs $380ea for 05-12 or $235ea for newer on sale
Is there anything special about the inner shaft compared to a KP inner shaft?
If shopping for a complete axle for outers only, is there any special considerations for year or model(F250vsF350)?
On the topic of unit bearings:
What is expected mileage lifespan of a unit bearing? One of my rigs would see a bunch of onroad mileage.
Do stock unit bearings fit 40 spline shafts? Or is there a different unit bearing that is needed? If there is a "special" 40 spline unit bearing, can 35 spline shafts be run without issue?
Are there 40 spline lockouts? If not, is there enough meat to broach a set of Yukons?