They refer to then as load leveling suspension but they are basically air bags. The system I have a question is the following https://www.readylift.com/readyair-1...pring-kit.html
Based on reviews they seemed to be a good unit, however I do not feel they are designed correctly. Currently my truck has 4.5" of downward travel before the bump stop makes contact. Measuring the rubber rings that reveal shock travel, I typically see about 2.5" of travel on my rear shocks for daily driving and curbs and such. Here is the issue, as part of the install ReadyLIFT has you install a 2.5" bump stop extension. In doing so this reduces the downward travel to just 2" on the passenger side and less on the drivers side with a full tank of
fuel.How is that ok, I will be hitting the bump stops constantly. Their solution is to add enough air to the bags to increase travel, the down side is it adds lift and thereby produces a rear rake as it was stock. Does anyone have any suggestions for a different brand that does not reduce downward travel? I am just looking to level up when I have a boat or trailer in tow. Thank you

 

I’m running AirLift on my truck with their wireless compressor system that allows you to increase or decrease the air pressure as needed on the fly.

the bags can go low on psi and have internal bump stops. Haven’t noticed any decreased ride quality and they work great with my heavier trailers keeping it from sagging under the weight

 

I have the readylift readyair bags on my 24' long bed F350 SRW. Truck is bone stock, other than airbags and Rancho RS7MT shocks. Even still has stock tires.

By far, the biggest complaint and question about these bags is the bump stop drop; based on my findings. The manufacturer states, "More Suspension Travel - Competitors limit the factory travel and typically eliminate the OE bump stops. ReadyAIR kits have improved suspension travel and retain the factory bump stops for optimal suspension performance. " Their claim is false. They do not provide more travel or even the same travel as stock. Lowering the bump stop limits travel.

My truck has about 300lbs in the bed - diamond back HD cover, decked bed glide and some camping gear. At 10PSI I am less than 3/4" off the bump stops. It takes about 35PSI to raise my truck to factory ride height. At that height I have about 1.25" of travel before the bump stop strikes.

I've contacted ReadyLift support and my questions/concerns have been sent to engineering. I've asked if the bump stock extensions can be removed, that answer is no because the bags can become damaged. There is a possibility that they can provide a shorter bump stop drop. I'm waiting to hear back from them. My setup at 10PSI provides 7" between the bag top and bottom plates - I am not sure yet what the minimum distance can be. As if to say, what is the max compression that the bags can take? or What is the minimum safe measurement, between the bag mounting plates? At what point of compression do the bags become damaged? ReadyLift says they will get back to me with this answer.

I do not want to ride around with 30PSI on a basically empty truck. I will admit, however, that 30PSI on these bags on a basically empty truck is softer and less bouncy than 30PSI on Firestone bags (I had Firestones on my last 1ton SRW, and Airlift bags on my PowerWagon)
I think it is a design flaw and failure on ReadyLift's part to require users to inflate their bags to a high PSI, in order to achieve factory unloaded rake when towing heavy. Ford did not intended for these trucks to have a factory unloaded rake when towing near max capacity. Level would be fantastic, but at level stance, with the ready lift bags the truck sits on the bump stops. Which, in my opinion, negates the point of having air bags and opens the discussion to a host of other potential negative scenarios.

Personally I want to return the airbag kit, but I do not think that is an option. I do think that these bags are a better design than airlift or firestone. With that said, the lack of the bags ability to compress greatly detracts from its function. One would not want to use this kit on a Tremor or lifted superduty that plans to offroad or needs rear suspension flex/compression. ReadyLift is basically saying "our bags can't compress very much, so we need you to run a lot of air in them. But to offset the negative effects of high PSI we have "turned" our bags to ride better" And if the bags can't compress or you are riding on your bump stops, then how good can the ride quality be? It certainly cannot live up to their claims. Still though, I want to point out, these bags do ride better than other bags I've had in the past, when not on the bump stops.

 

O have the ReadyAir bags on the rear of my F350 longbed and the ReadyLift Leveling kit on the front.
I'm almost at 32,000 miles on this truck. The airbags have been on since 1,000 miles

I run 10 psi when empty and that pretty much leveled my rear with the front leveling kit.
I run 50 psi when I have my 13,000 lbs GN trailer hooked up.

I think they are they best airbags I've had over the past 6 trucks and over 600,000 miles of driving. I've had Firestone, AriLift and now ReadyAir
Do as you please, But they have been great product on my truck.

 

This is exactly what I was saying and it seems to be overlooked. As you stated with the bump stop moved down, you only have 1.25" of rear suspension travel. These bags are really designed to have a constant air system working with them that keeps air in the bag and keeps your truck level. The air system can constantly adjust air pressure as needed. This is great if you are predominately hauling a load. If you only haul part time this is a poor choice. The bag can expand well, say at full droop but very little contraction. This eliminates virtually all rear axle articulation. I spoke with ReadyLift engineering at length about this issue and they agreed you loose rear axle articulation. These bags are designed to have a air system with them and virtually highway towing. I believe they are perfect for this application. For me, I also use my truck in various other applications and want the rear axle articulation. ReadyLift customer service was great and allowed me to return the bags for a refund.

One positive thing about the ReadyLift bags was where the mounted. Over the leaf spring. It appears all the other manufactures moved their bags inside the leaf spring where the bump stop is. The bracketry used to do this is horrible and just a crap installation. This lead to two more brands of bags returned. I did finally come up with a great solution though.

 

Snyder what was your final solution?

 

I agree theses are a very nice setup if you are pavement towing. If you are off the rode and need any rear axle articulation these are not the best choice.