Mine are the same, airlift 1000. Can't recall what 'model' (size), though.
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Absolutely and completely wrong. I just took a video which proves it (adding air to bags and rear end lifting immediately. Will post as soon as it's ready.From their own website - load leveling. They don't lift an unloaded vehicle. They will keep a loaded vehicle from dropping more. And a spring can't lift more with them, they don't change the load rating of the spring.
They are not meant to be filled at all times, only when there's a load. I didn't say anything about 0psi. Filled.
As an effort to combat the incredible amount of misinformation, rumors, anecdotes, etc I will bring some data to the conversation.
Firstly, there are multiple types of airbags for suspension, and @nukegoat your point about non-progressive rate does not apply to the internal coil air bags.
Your point applies to these heavy duty truck helper air springs. These grow in height to take up extra load. These are NOT progressive rate. These are BAD for suspension travel. They are GREAT for carrying heavy loads. These are NOT recommend for use on off road vehicles:
These are the Air Lift 1000 internal coil spring air bags. These push outwards on the spring only, they do not grow in height. They press outwards on the coil forcing it to elongate. Since the bag does not press directly on the axle or chassis, it only increases the coil spring's springrate, therefore maintaining a progressive rate and allowing flex:
Air Lift advertises this fact:
Lastly, I graphed my AHC pressures vs. airbag pressure and you can see that they act linearly. By reducing the AHC pressure required to maintain a certain ride height, more load can be carried and achieve the same ride height. @suprarx7nut you like data and you like AHC what say you?
Well increasing springrate will create a lift. That's true for anything that rests on springs, not just vehicles. From my experience it is very consistent and repeatable and I know how many psi to put in the bags depending on my goals. The numbers I posted MPa vs. PSI I could go and repeat again any day and be within .1 MPa.Well, I like the graph! I don't think I know enough to be helpful here, though. My impression was that the bags would provide a lift, but I have zero actual experience with these. I wouldn't expect the most repeatable performance from the bags vs the factory setup, but that's just my intuition.
If you plan on always carrying a load where the bags are helpful, the spacers seem like a much more robust solution.
Highly variable load = bags
Pretty constant heavier load = King springs and/or spacers
:dunno:
So you're saying airlift bags are progressive or linear? And the stock springs are progressive or linear? I think you're getting a lot of things wrong hereWell increasing springrate will create a lift. That's true for anything that rests on springs, not just vehicles. From my experience it is very consistent and repeatable and I know how many psi to put in the bags depending on my goals. The numbers I posted MPa vs. PSI I could go and repeat again any day and be within .1 MPa.
I completely agree bags are good for variable loads, heavier springs for constant known loads. But spacers are mechanical pieces that will reduce overall suspension travel.
Ok yeah I had it backwards. Still more correct than you. I can admit it when I'm wrong.So you're saying airlift bags are progressive or linear? And the stock springs are progressive or linear? I think you're getting a lot of things wrong here
Spacers reduce overall suspension travel. Would cause coil-binding on the trails at max flex.This. Spacers are the best way to retain the shock/spring design for small, cheap lifts
No they don't.They change the spring rate in a dramatic and progressive way, whereas spacers maintain it. Hey, but you do you
Coil binding lolOk yeah I had it backwards. Still more correct than you. I can admit it when I'm wrong.
Spacers reduce overall suspension travel. Would cause coil-binding on the trails at max flex.
No they don't.
Coil binding lol
No
Show me an example of it happening. The coils (especially AHC coils) have a miniscule block height." NOTE: Adding coil spring spacers to the vehicle may cause "coil bind" (all coils closed together) before the bump stop comes into effect. This can cause very serious damage to the spring and/or suspension components. Please consider this before ordering. "
No. I showed you my truck flexing out on airbags which directly contradicts you. I posted a disclaimer from the manufacturer of spacers pointing out the risk. If you have an example you post it otherwise you are just spreading more misinformation and no substance. You're making the claim you provide the evidence.Show me an example of it happening. The coils (especially AHC coils) have a miniscule block height.
Not in the current (political) environment!You're making the claim you provide the evidence.