And what I've been trying to get across is that the long arms have more leverage to twist the axle housing. It's really just a torsion spring sway bar. If you want to decrease the sway bar's spring rate you either reduce it's OD (not likely since we're talking about an axle housing) or you increase the lever arm that the vehicle mass can use to twist the bar. Exactly what a long arm is.
You could get lost in theory about does the axle housing twist less or the same or what with longer arms for a given amount of articulation, but that only means something to us engineering dorks. Most guys just want to know how all of the mumbo-jumbo translates into how the vehicle will perform.
With a longer radius arm the torsional spring rate is reduced, which increases articulation.
We're pretty much in agreement. Maybe even violent agreement.
