Air bags how to use them

If you work with different weight trailers and have ever used good axle to frame bags especially on rough roads you won't even re sell your old Timbren bump stops. You will dispose of them so as not to do the dis service to the next guy.

I know if a guy has a problem and finds a solution it's great until compared to another solution that is much better. I mean somebody still thinks a block of wood under his springs is a great solution and he could be correct to a point. And it's true the block of wood would never have an air leak.

Working with a rather soft coil spring as opposed to a stick & slide leaf spring makes this even more apparent.

Look into Timbrens, OP. No fuss whatsoever and they work great.

mkirsch wrote:
My understanding is that proper airbag use is to level the truck, removing the rear end sag, not bringing it back to full unloaded ride height.

At full unloaded height the bags will be taking all of the load, and the springs will be taking none, causing a poor ride at the very least.

You are correct, at least as to my experience. I don't run mine back up to full unloaded ride height.....too stiff and doesn't handle as well as when it is somewhere between unloaded height and level. It all depends on my total weight and and tongue weight which varies by trip depending on how much fresh water I have, which toy is loaded, etc.

Definitely have both sides plumbed separately unless you like extra body roll and sway. Or do what I did and plumb separately then add HD Helwig sway bars front and rear. Then it will handle like a slot car.

I don't know if anyone said this but if you want to control sway they need to be plumbed separate so the air don't squish "transfer" from one side to the other.

I had them on my 1 ton when i had a truck camper and it did help but made the truck ride very harsh.

mkirsch wrote:
My understanding is that proper airbag use is to level the truck, removing the rear end sag, not bringing it back to full unloaded ride height.

At full unloaded height the bags will be taking all of the load, and the springs will be taking none, causing a poor ride at the very least.

I keep reading bring it back to stock height when loaded with the airbags, not sure mine are capable of that. They are 5000 lb. capacity with the weight of truck ,plus the pin weight, I can't see them being able to handle the entire weight. The springs still would be bearing some of the weight also. Granted they certainly would not have to work as hard, but not working at all is doubtful in my mind.

My understanding is that proper airbag use is to level the truck, removing the rear end sag, not bringing it back to full unloaded ride height.

At full unloaded height the bags will be taking all of the load, and the springs will be taking none, causing a poor ride at the very least.

AIR BAGS: HOW TO USE THEM

I have the Air Lift with the internal bump stop along with the onboard air compressor with the wireless control. 55#'s of air when fully loaded (full water, fuel, toys, etc), and 45 to 50#'s on the return trip after dumping the majority of the tanks. I love the compressor and the wireless control. So quick and easy.

Willcamp4 wrote:
I should point out that I have not used the Firestones, but a friend of mine swears by them. With that said, I have had two Ford trucks and installed the Air Lift systems on both. With both I also used the systems without the on-board compressors, opting to adjust the air levels with an outside air pump. My advice...use the on-board compressor. I have used both the Air Lift compressors with the plumbing that runs into the cab and the new WirelessOne system. The older style worked well and I had it set up as the dual system. The WirelessOne system is plumbed so both bags have the same air pressure.
Having used those systems as described I have two comments. One is that unless I was carrying a top heavy load like a Cabover camper I like the WirelessOne system. It's a slightly easier install and works great. Secondly, having the on-board compressor is a great feature that makes it a breeze to adjust, without even having to stop. Also, you don't have to get out pumps or stop at various locations to make adjustments. Along the same lines, the final selling point for each was having to adjust the air pressure at a gas station, and the pressure gage/air fitting tore the Schrader valve out.

Adjusting the pressure to be used is simple and only requires a measuring tape. Measure the height of a point above the ground at the rear of the vehicle when unloaded. Then hook up the trailer to the fully loaded vehicle. Add air to the air bag system until the height at the point previously measured to is the same. Enjoy and you will also love the system. Expect it to take longer to install than those who have cool tools like vehicle lifts. It is always slower to do it laying on the ground.

I was agreeing with you right up to the point of the measuring tape. I don't concern myself at all with whether I am back to the unloaded height. The way these new trucks are setup, its not necessary to get back up to the unloaded height.

IMO if the truck is sitting level, then there is really no need to have airbags, if when loaded ,and the rear is sagging ,then air bags are needed to at least get to level, no need to get the rear riding higher then the front when loaded. Level is good enough.

I should point out that I have not used the Firestones, but a friend of mine swears by them. With that said, I have had two Ford trucks and installed the Air Lift systems on both. With both I also used the systems without the on-board compressors, opting to adjust the air levels with an outside air pump. My advice...use the on-board compressor. I have used both the Air Lift compressors with the plumbing that runs into the cab and the new WirelessOne system. The older style worked well and I had it set up as the dual system. The WirelessOne system is plumbed so both bags have the same air pressure.
Having used those systems as described I have two comments. One is that unless I was carrying a top heavy load like a Cabover camper I like the WirelessOne system. It's a slightly easier install and works great. Secondly, having the on-board compressor is a great feature that makes it a breeze to adjust, without even having to stop. Also, you don't have to get out pumps or stop at various locations to make adjustments. Along the same lines, the final selling point for each was having to adjust the air pressure at a gas station, and the pressure gage/air fitting tore the Schrader valve out.

Adjusting the pressure to be used is simple and only requires a measuring tape. Measure the height of a point above the ground at the rear of the vehicle when unloaded. Then hook up the trailer to the fully loaded vehicle. Add air to the air bag system until the height at the point previously measured to is the same. Enjoy and you will also love the system. Expect it to take longer to install than those who have cool tools like vehicle lifts. It is always slower to do it laying on the ground.