AH64ID wrote:
The Ford bags must be different, the ones on my dodge have a bit more travel than that and do not limit travel. They are also mounted I board of the rings. 11" at the wheel will be quite a bit less at the bags/springs.
Firestone does not sell a convoluted bag for this market with more than about 6" travel. for example the 224C air spring recommended for all Ford Superduty kits is 2.80" compressed, 8.75" extended or 5.95" total travel. You can find the specs for all of their bags on their website. Maybe someone else does? Don't know how much travel your Dodge had/has but I bet it is more than that.
With a live rear axle, 11" at the wheel is 11" at the spring/bag.
