Dual air bags
So I've been thinking'... (uh oh) I carry a LOT of weight in my Ram 3500 dually, and I have a set of airbags with in-cab controls. They work great. But I have to run them at very high pressure when l...
Forum Discussion
Bedlam wrote:
Firestone sells two different bag mounting systems that may accommodate what you want to do:
1. The first type is bolted to outboard side of the frame rail and sits over the leaf spring's U-bolts.
2. The second type is bolted under the frame rail (replacing your bump stop) and sits on the bump plate inboard of the leaf springs.
I assume you would plumb the two left bags to each other and the two right bags to each other to equalize pressure. You could plumb each bag individually for redundancy in case of failure, but it would require more work to manually equalize pressure and not have one bag doing most of the work for the two.
This is what I was thinking. ^ It may all fit without any custom work.
My opinion though is that's a lot of air to be sitting on. My truck's still kind of a bouncy castle with 50-60psi, sitting on the overload leaf with a big wig sway bar.
Before adding a second set of bags right where the greatest bending moment is between the spring mounts, I'd likely opt for adding a leaf or 2 in the stack or in the overload spring. Or even some bolt on add a leafs.
You already have the Kelderman system in place to tame the buckboard empty ride.
Or, is the eye to eye distance the same for springs out of a 45/5500 Ram or F4/550? May be possible to get some heavy junk yard springs out of a cab n chassi truck?
Out of curiosity, and I know this will be open season for the weight police, how much weight are you carrying and what do you need to run the bags at currently?
